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Casper vs. Serta

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Casper

Casper is one of the most interesting trend-setters in the mattress-in-a-box space. They, by and large, shed light on how a brand with great marketing and a popular product can disrupt an industry. Casper has kept innovating its products with their 4D Sleep Technology, and four flagship mattresses: The Original, The Original Hybrid, The Wave Hybrid, and The Nova Hybrid. For warmer sleepers, they also offer Snow Technology enhancements in their Wave Hybrid and all new Snow Mattress. But, with all the options, can Casper still deliver on comfort?

Serta

Serta offers foam and coil mattresses and are common at many mattress stores and big box retail locations. As a household name in the mattress industry, Serta has been in the mattress business for a long time. Their mattresses range from budget-friendly to higher in price and offer a variety of firmness options and cooling designs. While most customers find Serta's branded products to be initially comfortable, there are some concerns about durability for some sleepers.

Based on our aggregated reviews and our scoring method, we recommend Casper in this match up!

See Our Full Review of Casper

See Our Top Mattress Choices

Mattress Score

Overall Score:
Casper: 8.9/10
Serta Perfect Sleeper: 7.2/10

Customer Satisfaction:
Casper: 8.8/10
Serta Perfect Sleeper: 7.2/10

Price Value:
Casper: 8.6/10
Serta Perfect Sleeper: 7.1/10

No Back Pain:
Casper: 8.8/10
Serta Perfect Sleeper: 8.2/10

Price:
Casper: $595-$3995
Serta Perfect Sleeper: $349-$4599

Casper:
Get Yours Now

Serta Perfect Sleeper:
Get Yours Now


Casper's Owner Satisfaction

These mattresses have positive customer satisfaction scores overall. There are solid scores overall from sleepers, but some with differing experiences. Some sleepers didn't appreciate the feel in regards to their body. Make sure to read on to learn if these mattresses will work for you!


Casper's Supportiveness

Mattresses that are supportive are sometimes thought to be firm, but when we mention support, we mean support that cradles your spine, hips, and shoulders. These mattresses do a good job providing support for the average sleeper, but rarely, some customers don't always like the feel.

Edge Support
These mattresses have good support along the edges, which is great for those that like to sit on the side of the mattress or like to lie towards the sides of the mattress.

Bowling Ball & Density Tests
By resting a bowling ball on the mattress, you can measure how even a mattress is in terms of support. These mattresses will provide a good amount of support overall, but there are a select few who may experience discomfort.


Casper's Durability

Getting a long lasting mattress is important to every shopper, but because of the influx of new companies in the space, it can be hard to shoppers to understand. That being said, reviewers and customers respond similarly when you can see all of the reviews. These mattresses provide above average durability for the everyday sleeper. Some who are larger may find their mattress to be less durable.

Serta's Owner Satisfaction

There is some negative input from sleepers about these mattresses. Some sleepers were unhappy with the comfort, but others were really pleased. Due to this, it's harder to predict whether one of these will sleep perfectly for you. Read on below to learn more and to hear from customers to see if one will work for you.


Serta's Supportiveness

In terms of having support long term, these mattresses get mixed reviews. Some have described them as supportive and report being comfortable, but others had poor comfort. If you would describe yourself as plus-sized, these mattresses may not work 100% for your body.

Edge Support
Edge support is an essential item for those that like to lay close the edge of their mattress without dipping or rolling off. Some folks may find these mattresses to not provide adequate edge support for them.


Serta's Durability

Unfortunately, these mattresses aren't appreciated as well for their durability. While some folks had good experiences with the performance, others had faster problems than average. Make sure to do some extra reading of the reviews and warranty policies before buying.

Browse Casper Customer Reviews

Sanity Saved!
My husband and I both have serious bone and muscular issues. Mine from years of being in the Army and my husband from being run over by a truck two years ago. So, we have been on a quest for better sleep for quite some time. No matter how much money we spent on mattresses; we still woke up stiff and distorted in pain. I kept hearing Glen Beck talking about the Casper mattresses so, I finally ordered one even though we had doubts it could be that much difference. We were just accepting the fact that pain was our present and future. The price was much less than expected and the ordering process was simple and effortless. The mattress and foundation arrived in only a few days, much faster than anticipated. Putting the foundation together took no time at all; then we opened the mattress box and watched in curiosity as it expanded to fit the frame. That night, as we got in bed, we were unsure because it felt so different. Seven hours later (longer by far than either of us had slept in years), I woke up first and as I prepared to ready myself for the struggle of moving stiff, painful joints, I realized, for the first time in more than ten years, there was ZERO pain!! My husband had the same experience! So, thank you, Casper, for being the reason we have a new lease on life...pain free mornings and deep, restful sleep through the night. We are in awe and we bow to your genius. Brava!!!

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Best sleep ever!
By far the best mattress I have ever owned. I will stick with Casper for all of my future mattress needs!

Amazing Comfort and Support
Unboxing and building the foundation was very easy. The mattress unrolled itself. We did let the mattress air a couple of days for the manufacturing smell to dissipate. Compared to our previous “pillow top” mattress the Casper provides much better all over support on pressure points (hips/shoulders/sacrum). The feeling is indescribable. You don’t sink into it - you’re supported in it. I would definitely recommend Casper to a friend without reservation. In fact, I’d insist they try mine out first (which is what happened to me and I was amazed). The best advertising is a happy customer.

Incredible!!
It fascinated me that it was vacuum sealed. Guys, this is one of the best purchases I have ever made. I also purchased your pillow, which I adore! I was stunned to receive it the day after I ordered it and was incredibly grateful. The bed is everything I hoped for and I thank you for the service I received. You bet I would recommend Casper! Thanks again.

Casper forever!
This is my Casper and I couldn't be happier! I got us the Casper because I heard good things about it, the whole thing was a great experience: the easiest unpacking, assembling and installing on my bed frame ever! I sleep with my service dog and there is plenty of room, no sagging mattress, not too hot, I give this all a big, fat thumbs up!

Awesome. Just what I needed
I work 3rd shift and sleeping during the day/afternoon was very difficult. To get to, and stay, asleep. I would have to take sleeping aids and the such. Now, I can just put my head down and I am out like a light. At anytime I want. With no sleep aids. Just head down and out wake up fully rested and ready for another night. Thanx

Love it!
I knew the 'set up' process was going to be easy, but it still surprised me. I got the box into my car and my place all by myself (it's large but manageable), and then it was less than 5 minutes to unbox it and have it ready to go. An absolute breeze. On top of all that, it's a dream to sleep on (you see what I did there?). The mattress is firm enough to be supportive, but also cushions your body and molds to it so nicely. I work out of town for two weeks at a time and when I return home I am just dying to crawl into bed. Worth every penny :)

Worth every penny
Easy unpacking, and great to sleep on! I was able to unpack by myself.

Casper
Love this bed, sleep is amazing...

Sleeping on a cloud
I ended up buying everything available: foundation, mattress, pillows, sheets and duvet. When all the boxes arrived I was like a kid in a candy store. I was so ready for a new bed and getting a better night of sleep. Setting up the foundation was super easy, but what I was really ready to see with my own eyes was the mattress coming to life. Once I had everything unboxed and made my bed I couldn’t wait to go to sleep that night. That first night was like sleeping on a cloud. Now after sleeping on the Casper bed for over 2 weeks I have had a better nice sleep, I’m not waking up in the middle of the night trying to find a comfortable spot or waking up in the morning to a sore back. I’m truly impressed and very happy. I will be definitely recommending my family and friends about Casper.

After all these years...
Great mattress. So glad to get away from spring-type mattresses that maybe are ok for about a year, and then start to sag. I have spent thousands of dollars on these mattresses, have had them replaced on warranty at least three times over the years. Never go back.

Nothing, nothing helps you sleep better than this mattress.
From the start I was a little skeptical, but a very good friend recommended Casper. So my wife and I talked and decided to give it a chance. After all, with 100 days to try it out there was only a little effort to lose. So we unpacked the mattress and let it sit open for 24 hours. I have to say, opening the box and cutting the wrapping off was a cool experience. We replaced our mattress with the Casper, kept our original box spring. Night one it was comfortable, firm, cool to the touch, and felt like a hug. Night two I realized that the edge was not as firm as a standard mattress, but then again it was not hard on the edge. I realized that I have been sleeping on the edge of my mattress and it was not doing me any favors. The Casper changed my body alignment in the bed and I am glad it did. After a week we both agreed it was a good mattress. After a month we decided to keep it and discarded our original mattress. It has been over a year now and I would not trade the Casper for anything. If you paid me a million dollars, I would give you the mattress, but I would buy another one and keep the rest of the money. I played college football, weigh over 300 pounds, have bad knees, hips, shoulders, and back, but this mattress allows me to get out of bed without any pain. With my old mattress it would sometimes take me 20 minutes to walk after getting up. With the Casper I hop out of bed with no pain, it is the best part of my day. The best part is the Casper still looks brand new, no depressions or sagging at all. Even the four dogs that fight for position during the day have no effect on the shape if this bed. Now lets discuss the cooling effect. I used to sweat every night in my old bed. The Casper breathes, period. I do not sweat at night any more. It is cool in the summer and adjust perfectly to your temp in winter. I can wear long PJ's and still be comfortable. And then there is the motion of the mattress. Ask my wife and she would tell you that I never get up in the middle of the night anymore. It is not true, but she just does not feel it. I don't feel her get up in the mornings either. I never needed an alarm clock until the Casper, she got up first and her moving would wake me up. Now she gets up and my alarm goes off to wake me up and I think that some days she over slept. Nope, she just got up without me feeling it. If you took the time to read this review, then do yourself a favor and try this mattress. If you don't like it then you are in the vast minority and I have a slightly used mattress to sell you. Give it a try and at the very least you can cut open the wrapping and watch the mattress grow in awe!

Overall Impression of this Mattress
In a word, I LOVE this mattress. It's the best I've ever owned. It took me a full month to adapt to it, though, just as the Casper documentation warns. I even considered returning it, but I can now say I have not had better sleep in decades.

Best Sleep in Years
Bed and foundation arrived fast! Set up was simple and easy. I ordered the foundation as well it sleek and attractive looking super simple to set up. I had been having back problems which my old spring mattress just made worse. It took a few nights to adjust but now I/we sleep better than ever. I wish I would have ordered months ago instead of waiting so long. So happy you offer payments with affirm. End of story we and our dog simply love our CASPER!

Our New Mattress and We are Thrilled!
I was skeptical about buying a mattress that comes in a box but when I watched the video on how Casper Co. developed the mattress, I thought what was the worst that could happen, we ship it back within 100 days. I had had a small back pain from sleeping with my 5 year old and sleeping crooked. The Casper mattress was delivered. My husband and I had been playing musical beds with our twin 5 year olds. The moment the bed came into the house, we were like, mommy and daddy are going to sleep in our room in our new bed. In 1 night, my back pain was gone and I slept in the same bed as my husband after weeks of moving from bed to bed in our house. My husband loves the bed and refuses to sleep elsewhere now and I just sneak out of the kids rooms back into the Casper. I think we may buy one for my father for Xmas! Loving the bed! Saved my back and rekindled my marriage, lol, in a manner of speaking. Thanks Casper!

Results
I was able to unbox the bed by myself. Some struggle involved, but very doable. I thought the mattress would be squishy like my previous foam mattress. I was surprised at the relative firmness. The results don’t lie, I have been significantly better. Very happy with my Casper.

fantastic
unboxing was fine. easy and quick. it’s honestly the best mattress i’ve ever slept on.

Great mattress
Setting up the Casper sleep system was fun, simple and fast. We had it unboxed and set up in about 45 Minutes. I was a little worried about having to get used to this type mattress as we have had a waterbed for the past 30 years. Boy was I wrong. From night one, my wife, my dog and I have slept great. My dog even sleeps in in the morning. She doesn't want to get up. This is the most comfortable mattress I have slept on. Great job Casper. Highly recommend it. In fact, one of my sons is considering buying one.

Cover seems great. Easy to get on the bed.
Yes, easy process to put the frame, foundation and mattress on. I had the best sleep since before I was pregnant and my baby is 7 months now! I'm a side sleeper and I found it super comfy. I actually like that it's lower to the ground than a double sided pillow top, as my dogs can get up and down much more easier now.

It's like sleeping on a cloud
I had various spring mattresses for years. After a while, all of those springs can be felt and they press against every part of the body in the most painful way. I would wake up with pain in my neck, hips and the arm on the side I slept the most on during the night. And after doing a month long sleep tracking app, I found that I was only really averaging, at most, 2 hours of deep, restful sleep a night. After only one night I spent four out of the six hours asleep in a deep slumber and had no sleep-related pain. The only downside is that the cooling technology has me adding an extra blanket but that just makes the bed cozier.

Very comfortable bed, supportive enough for my neck and back issues.
Love my Casper! I've been sleeping on it for about 2 weeks now, and it's lived up to the hype. It offers enough support for my back and neck, and I can sleep comfortably on my back and side. Was easy to set up and started sleeping in it that very same day.

Sweet...!
We have let it "air out" for 5 days, to get ride of the chemical smell, before using. It's still there after a week...

Love the mattress!
The delivery was 2 days late. Oh well. The product is fantastic.

Love it.
Sleeping great! Waking up with out any back or neck pain. Energy levels during the day have gone up. Happy with my Casper purchase

Great Mattress
I had the same spring mattress with a memory foam pad on top for many years and thought it was comfy but my back always hurt. After the first night on my Casper mattress I knew it would be great for my back. I am extremely happy with it and feel very comfortable. I also upgraded from a Full to a Queen and it is the best! Highly recommend it to anyone who likes a comfy and supportive mattress (AKA everyone.).

YAAAAASSS!
This bed is the JAM! I haven’t slept this well in ages. I usually toss and turn all night long, but with the new Casper, and only a few days in, I’ve already noticed that I am actually getting a full night’s sleep as well as waking up not feeling exhausted and achy. This bed is basically like sleeping on a perfect cloud. We also purchased the pillows and that was the icing on the cake to make it that much better. My body is already thanking me!

YAAAAASSS!
Sleeping through the night is actually a thing? Who knew!

Defines how sleep should be experienced!
I works nights as a paramedic and I was starting to experience horrible back pain. This mattress just sucks you in. I also feel like this is perfect for someone who sleeps during the day. It muffled vibration so when my little one walks in and bangs on the side of the mattress I don’t feel it. Thank you Casper!

Defines how sleep should be experienced!
I works nights as a paramedic and I was starting to experience horrible back pain. This mattress just sucks you in. I also feel like this is perfect for someone who sleeps during the day. It muffled vibration so when my little one walks in and bangs on the side of the mattress I don’t feel it. Thank you Casper!

Comfortable bed, great buying experience
Get a bed over the internet? Get a bed in a box? Get a bed without comparing it next to dozens of other possibilities? These are all out of the box concepts (get it?) but it worked for me and my wife. The bed was delivered to my door less than 48 hours after I ordered it. The box was incredibly heavy and it required some muscle to take it to my bedroom. It also required work to unwrap it. But compared to going to a local store and picking it up, it was 100 times easier. The bed itself is very high quality and comfortable. We have the original high end memory foam bed in our hour. This bed is as good if not better than that bed - for fraction of the price. We are getting great night of sleep as a result. I would never buy a bed any other way and from another brand.

Best sleep of my life!
The unboxing experience was super easy literally no tools needed just putting everything together, I had got the foundation, metal bed frame, mattress, and bed sheets and everything feels amazing, perfect height all together and it all felt greatly made. The sheets feel just like hotel sheets, I love them. Next I’ll be getting the pillows!

My Daughter LOVES her new Casper!
Here's a little secret. I used to work for a large mattress company, I know mattresses. When my Daughter complained of the lousy spring bed she had, I knew what I wanted to do. Truly, the best way to buy a bed is to simply have one sent to your home, with a free-trial, it is a no-brainer. I was not home when the bed arrived, my Daughter and Son set it up, easy, they said. But the next morning, when my Daughter awoke, she was all smiles. "I had the best night of sleep, ever! Thanks, Dad!" That's all I needed to hear. Thank you Casper.

Excellent! I am so glad I opted for the Casper!
Tremendous difference from my former traditional mattress. I would definitely recommend to anyone who is interested in making the change!

Durgen
Fast delivery and great product. I woke up feeling very well rested.

Wonderful mattress
Easy unboxing. Love sleeping on it. I would and have recommended this to friends.

Impressed the first night
Unboxing the mattress was easy. The experience of sleeping on the mattress far surpassed my expectations. Despite the break-in period, teh morning after the first night sleeping on the mattress, I knew I have been lacking restful sleep up until now. My previous mattress was a spring with a foam topping. every morning I would wake up with some hip pain but never thought it was my mattress, but rather the shoes I was wearing throughout the day. After my first night on the Casper mattress, no pain. Beyond grateful for the most restful sleep I have had in a long time.

Great Sleep @ a great price
Love the mattress! It was either the casper or a matress for 3,000 and im glad I saved my money and went with casper. I have one of those name brand memory foam mattresses in my spare room and you cant tell the difference between that and the casper mattress. I am very happy with my purchase!

I loveeeee it
It was super easy to unpack !

Great mattress & GREAT PILLOWS!
The unboxing experience was good. The only problem I had is....I ordered the mattress on Wednesday the day before Thanksgiving. We were in Palm Beach, BUT we live in Chicago. I told the manager that we would not be home until Monday. She said it doesn't go out for 2 days, which would have been Monday. On Thursday (Thanksgiving) I received an email from UPS that the bed was going to be delivered on Friday, the day AFTER Thanksgiving. IT WAS A BIG FIASCO trying to reschedule the shipment. I spent half a day, contacting the store, UPS AND then the following week, I couldn't get the bed delivered. The girl at the store got that done for me. IF THE STORE WOULD HAVE LISTEN TO ME, WHEN I TOLD HER THAT I WOULD NOT BE HOME, THIS WOULD NOT HAVE HAPPENED. IT TOOK A LOT OF TIME ON MY PART, AND I AM NOT HAPPY ABOUT IT!

great
yes, highly recommended

Browse Serta Customer Reviews

Really nice when warm. Hard as a brick when cold.
Have a cabin where the bed room temp is around 60 in the winter. The upper 3 inches of gel memory foam is really ridgid when cold. Climb into a cold bed is more like climbing onto a piece of plywood. After about 10 minutes, your body temp softens the foam and it is really comfortable... until you roll over too far onto a cold slab and you are back on the plywood.

I sure hope summer is more comfy.

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The Best Mattress!
This is a great mattress! My husband and I moved to our new house and bought this mattress for our room. The first bed that came did not open up all the way and was basically a taco. We called Amazon and they sent a replacement. We have been sleeping on this bed for about 3 months now and we can feel the difference from the traditional mattress we had prior. Our sleep is a lot better, we no longer feel sore, and we don't notice each other's movement during the night. Definitely get this mattress!

Firm enough for a big man like me!
I weigh a lot in comparison to other people so I was initially hesitant to buy a memory foam mattress as I feared sinking to the bottom or drowning. This mattress not only held my weight stiffly but it is super comfortable and probably the best mattress I have ever used. I bought the double and it worked so well that when I bought a king bedroom set I decided to buy the bigger exact same mattress in king size. It come in a big box compressed so you will want to get it upstairs on the bedframe before you open it up and let it absorb all the air around.

Great Buy!
I was uncertain about purchasing a mattress on-line, but the price was so much below what I found in stores that I went ahead and made the purchase. I'm glad I did. The shipping was easy, the mattress quickly expanded once in place. I did not notice any odor. I'm sleeping much better through the night and wake with less back/hip pain. This mattress is a great buy, especially for the price!

Amazing
My wife and I were looking to upgrade our bed to a king during a recent move. We looked at all the big named stores for furniture / mattress and were taken back by the price of the memory foam mattress. We tried out the I-comfort mattress Raymour and Flanagan's and really liked it. After spending hours researching this mattress, I came to the conclusion that this is similar to the Serta I-comfort and about 1/4 - 1/3 of the price. This bed is exactly as advertised and feels identical the the I-comfort we tried in the store. We could not be happier and it sleeps so much better than a traditional spring mattress. I would recommend to anyone.

Remember, you also need a box spring or foundation. This will add another $200 - $400 for the total cost of the bed.

A most fantastic mattress
Our new mattress is comfortable beyond words and so much lighter than the Tempurapedic we had before for many years. It feels like a heavenly cloud and we have slept so well on it and could not be more pleased with our purchase. The price of it is unbelievably low, I recall we paid $2,000.00 for our old mattress over 15 years ago.

Maria & Ted Phillips

I snore less.
One of the best beds I have slept on. I usually sleep HOT and was leary of trying the memory foam bed, but i was amazed at how cool it sleeps. My wife has also said that I do not snore as much.
I could not give the bed a 5 for one reason. I like to sit on the edge of the bed and put on my shoes, but this bed does not have the support on the edges to do that.

Hard, hot, and bumpy
I've had this mattress for 3 weeks now and I am not happy. It is very firm for a memory foam mattress (maybe it will soften up over time), so firm that my body doesn't sink far enough to fill in the lumbar space of my back. I wake up sore every morning, and it reminds me of sleeping on the ground (I camp a lot, so I know). It was shipped in a shrink wrapped container, folded in half, so there is still a noticeable ridge down the center of the bed that divides the two halves. Also, even after airing it out for a week, it does still have a noticeable plastic smell. Lastly, it does trap a heat a little bit.

Overall, I am really unsatisfied, and am contemplating returning it.

Very good mattress
I have had this mattress for a year. The mattress is very good. I read a ton of reviews before purchasing this mattress. A lot of mixed reviews when I researched this mattress. I could not see spending 1500 to 3000 dollars for a similar mattress. I was a little skeptical because this mattress was so cheap. Amazon Prime was a factor in purchasing this mattress. The mattress is very good. No issues with smell or sagging. I am very happy

Hard as a rock
Wow, what a disappointment. Sure wish I'd listened to the reviews that said this mattress was HARD. It's not just firm, it's like sleeping on a stone slab. I can't imagine the hassle to pack it up to return it, so after a week of suffering, we bought a 4-inch memory foam topper, which has helped tremendously. However, as soon as we can afford it, we're buying a real memory foam mattress.

Way to firm for Foam!!
If I had it to do all over again I wouldn't have bought this. It needs to be listed as an Firm mattress. Since I have it, I tolerate it. I went out and bought a 1inch foam topper to put on it to reduce the firmness. What I do find is as you sleep on it and it warms up it gets softer. So I bought a heated mattress pad and put it on also. About an hour before bed time I turn it on low and it does soften the mattress somewhat. Over all I would never recommend this mattress nor would I by it if I knew what I know about it now.

Great Sleep
We were a little worried to buy the bed online, but took the plunge. We were pleasantly surprise at how quick it was delivered. The queen size bed was heavy, but being boxed up made it easier to move. Once in the bed room, we unpacked it and let it return to its original shape. About two hours. The bed sleeps great. My wife and I both enjoy the fact that it adjust to our size. It does not wiggle when I get out of bed at night. I was expecting to sleep hot, but the cool gel works. Great purchase and great value. We priced similar beds at retail stores and they cost $1200. Very happy.

I love this mattress
I bought this mattress almost 2 years ago and I still love it.

That being said, I must disclose that I am somewhat cold-natured, so I don't mind that it retains heat, as the new memory foam mattresses do. This is the only reason this mattress gets 4 stars instead of 5.

When I purchased this mattress, I had done quite a bit of research on prices and quality of memory foam mattresses, and found this one to be one of the most economic choices for the quality. I am happy that I chose this one.

It arrived in a big square box. WARNING: Do NOT open the box until after you drag it upstairs and into the room where you want to use it. Opening the box in another room will create a lot of unnecessary work for you.

The instructions said it would take about 24 hours to completely assume its proper shape and size. In reality, it was ready just a few hours later.

My husband complained that it was not as soft as he liked, so we bought a memory foam/gel mattress cover for it at Costco. This helped make it softer and provided some relief for my husband from the heat retention.

If I had to buy another mattress, I would buy this one again.

Smart buy
The full size mattress is really comfortable. Bigger then a normal full size mattress. We had to replace the old boxspring to a sleep master smart base because of the size if the new Serta. Now we have more room under the bed for storage as well.

Great for sleeping, but quality a bit poor.
I was already to give this a 5 star rating. We bought it in june for our summer place. We have a temperpedic and home and never sleep well with out it. We could not justify the cost to buy one for the summer place. When we found this we were excited! The negative reviews sounded like the negative reviews for temper pedic, so we were not too worried. The box made it really easy to transport ourselves to our place. It opened and inflated great! We had all the windows open and fans going, but we never really noticed an odor. We even slept on it the first night!. It was close to the temper pedic sleep wise. Not quite as cloud like, a little harder, but it worked for us!

This weekend, I took off the waterproof cover that we purchased to wash it with the sheets. I found 4 places on the mattress where the seams were split and you could see the foam inside. Very dissapointing! We expected a little more from a Serta!

Love this mattress
Excellent mattress through and throughout..Amazon was super quick and mattress was in perfect shape..As I sleep on this mattress 2 yrs later all I can say is I sleep like a baby..It feels like you're sleeping on a cloud ..I wake up refreshed from a great night sleep day in and day out..

I'm lovin' it!
Researched loads of beds in my desperate attempt to get a good nights sleep and deep six the pillow top that was aggravating my already ailing lower back...........decided on the Serta icomfort since many people commented on how hot the memory foam gets.....and tried it out at my local store where they were upwards of $1600 depending on the depth. Arrived promptly, NO SMELL, easy set up and was sleeping in it that night....however my husbands initial comment before he had slept on it, was that it was like a slab of concrete.......... but once you're in it this is not the case... It is firm, yet neither too firm nor too soft and extremely comfortable altho it did take me 3-4 nights to get used to it having been sleeping on a pillow top, and I did find I had to adjust my mediflow pillow somewhat so it was flatter and lower...........the only down side I can see, is that both myself and my husband have been lingering in bed much later than normal, I used to be up at the crack of dawn since my back would be complaining and I needed to get up, but its oh so comfortable, and I'm loathe to get up when its so very snuggly and cosy....I'm sleeping much better with less tossing and turning due to pressure points.... if you're considering one, I'd say go for it, we both love it and were not dissapointed in any way!
**UPDATE** Oct. 2014 No sagging....best bed EVER!

Serta 12-Inch Gel Foam 3-Layer King Mattress
We received this mattress packed in its box and we took it to the bed and unboxed it accordingly to the instructions. Here is a short video of the process. [...] We then waited only a few hours, made the bed, and slept that night on it. Its been great this first week! Highly recommended and I will write another review after a few more weeks along with an updated video of it. It was awesome to see it take its shape! Thanks

Intelwalk

Great mattress. Unbeatable price.
Bought this mattress after trying out several different foam beds at various stores. Macy's had the Serta line of beds and I liked them much more than the others that were there. So I was very pleased to find the mattress on here.

I bought the full sized bed and it came in a box that's roughly 4' by 2' by 2'. The factory folds the mattress several times and then compresses it in a plastic wrapper. I put it on my existing box spring and opened it up and left it sit for about 6 hours for it to reach its full shape.

There was a slight smell to it but nothing unpleasant and by the time I put the mattress pad and sheets on it, I was sleeping on it the first night without any issue.

If this is your first foam bed it will take a few nights to a week to fully acclimate to the difference between this and a spring based bed, so dont give up on it too quickly.

I sleep on my back and side a lot and used to have horrible shoulder and hip pain from a conventional mattress and the pressure points. I am pleased to say this is entirely gone with this mattress.

I normally like a very soft squishy mattress and when you first sit or lay on this bed (especially if it's a bit cold) it's very firm. I laid on it and thought, "this will never work". Then it begins to conform to your body and supports you so well, you'll understand why so many people are switching to this type of bed.

With any foam bed, they hold a little more heat than a normal mattress. I havent had an issue with this one other than during the colder months I had to turn my electric blanket down than where it's normally set and I am fine. I would HIGHLY recommend this bed and at this price you just cant beat it.

Best mattress I have owned
I have had this mattress for over 3 years now and it is just like new. Would highly recommend if you are looking for a quality memory foam mattress at a great price. I have back problems and this has been wonderful.

This is a great mattress!
I was very skeptical when I ordered the product, and when the mattress was delivered in a 3 ft box and I pulled out the mattress folded over and shrink wrapped, I became even more anxious. When you first open the mattress and flatten it out, it will be hard as a rock. This is only because the gel becomes cold and needs time to reach room temperature. I let my mattress straighten out for around 5 hours, and by that time the mattress was completely flat and much softer. I wish the mattress was a little firmer, but all in all I am very happy with my purchase. The mattress is extremely comfortable and I love that the mattress retains my body heat, especially during the winter. If you're looking for a comfortable mattress at an affordable price, I highly recommend this mattress.

So far so good
You have to let this bed have a break in period. It was shipped in a little box and expanded very quickly. My husband built a platform out of wood for the bed. The product only had a smell for the first night or two but nothing like some of the reviews had mentioned. Now it did have a high spot for the first two weeks but after it began to break in things got better. I waited to review this poduct because I heard that these type of beds need to be broken in before you can have a real good nights sleep. We are both sleeping better. I love it even more because my husband wakes up earlier than me and I never ever feel him moving or getting up before me. I love that part. This was a good buy. I didn't give it a five becuse I am a hard grader.

Just Right
I ordered this bed in the offset chance that it would be comparable to the beds in the big chains (i.e. Macy's, Sears, Etc.). I was pleasantly surprised when it arrive on schedule and was set up and ready in minutes. There was no smell that a lot of other customers spoke of. It did have a slight crease for the first few days. However it has fallen and I assumed it was due to packing. I've only spent two nights on it as I'm not moved in yet, but it made for a comfortable sleep. Especially with my girlfriend. Having my arm under her pillow didn't come accompanied with the "dead arm" that happens on most mattresses. All in all it was a good experience and saved a new home owner a lot of money. Thanks!!

Just like the more expensive mattresses
We went to a department store to try out memory foam mattresses and got sticker shoch at the prices. We came home found this Serta on Amazon we ordered it right away. When it arrived we were very surprised to find that it feels like a nuch more expensive mattress. We are very happy with purchase of this mattress. Thanks so very much.

I am in love with my new mattress
I am in love with my new mattress. It's a whole lot firmer than my old one, but a whole lot more comfortable. I had the luxury of testing it at my parent's home first. I have already recommended it several times.

I like it, wife hates it
I purchased this mattress 6 months ago after trying out the Gel mattress in a local store. This mattress doesn't seem as soft as the one in the store. My wife liked it at first, but after a few weeks changed her mind. She now says it is the hardest mattress she has ever slept on, but she seems to sleep well. I have back problems, and I do think the mattress is hard but I also think it helps my back. The gel does help keep you cool, but the foam mattress does hold some heat.

Amazing mattress!
Greatest mattress I've ever slept on. I am about 205 lb and it hasn't had the denting problem other foam mattress suffer from even after a year of use. The gel also helps to keep it nice and cool during the summer months.

Also, there was no noticible smell when I opened it.

Love it!
I had read a lot of reviews before purchasing this mattress and I am so glad I did. It does take two people to set this mattress up, but easy to place, remove the package, and let it sit to expand. There was a slight odor of chemical, but it wasn't that bad. I opened the sliding door to let natural air in and seemed to be kind of gone by the evening. The bed was comfortable, firm, and felt very relaxed as soon as I laid in it. This was definitely a good purchase for the price!

For a great night's sleep.
This mattress is very comfortable - no pain from pressure points. It is quite firm but we use a fluffy mattress pad which makes it just right for us. The mattress is barely a month old but so far, we love it.

Amazon told me to wait and now i can't return this item.....NICE!!!!!!!
I purchased this bed and the first one came to me falling apart... The replacement one seemed to be ok... we set up the bed and it seemed to take it shape over the next 24 to 48 hours... it had a very high spot in the center on the fold that they put in it to box this item.... the high spot never went away... i spoke with a amazon rep. and the said that it should relax and lay flat... it has been almost a year am I'm still waiting for it to lay flat...i have to lay in the middle of the bed to cuddle with the wife!!! this don't make me happy... so it looks like I have to spend more money and get a new one...i just spoke with a Amazon rep. and he told me that the return window was only a few weeks from purchase... so i waited as asked and now i can't return this item...I to me seems like i was told to wait so that they didn't have to return this item!!!!! Amazon is usually good with things like this but per there request that i wait i loose out??? this just don't seem right in my eyes... i guess I'm out the 581.94 that i paid... YOU HAVE BEEN WARNED DON'T BUY!!!!!!

Gimmick product, period
I bought this in hopes of finally getting good night's sleep on a comfortable mattress. That didn't/hasn't happened. Hands down the dumbest purchased I've made off Amazon ever. This thing is HORRIBLE.
Main complaints:
*Stiff as a board.. No matter the temperature (they claim your body temperature will fix it as it heats up)
*Stinks of chemicals. Not sure what its made out of but WOW! Smells like I'm sleeping in an open can of paint.
*I weigh around 190lbs and I don't even make a dent in this thing. I don't sink in and it sure doesn't "form" around me.

Talking to a retail seller of these he told me more foam mattresses are returned than kept. The floor models are beat down versions of the real things so people can't feel the stiffness.

Gimmick product, period

Good company bad product.
This company is good but the mattress sucks. The first one we got we thought there was a defect because where we sleep there are large indentions but since they replace the mattress the same thing is happening .

If you buy this, don't plan on staying out of it for long.
If you buy this, don't plan on staying out of it for long. This mattress is so deliciously cozy that after the first night, I ordered one for my daughter as a birthday gift. No more legs cramps, neck pain from sleeping in the wrong position and the mattress doesn't heat up like the regular memory foam beds. SOOOO nice!

SERTA DOES NOT MAKE THIS MATTRESS. WARRANTY IS THROUGH OTHER MANUFACTURER. READ ISSUES BELOW
We purchased on 10/30/2011 and keep a protective mattress pad/cover and deep pocket fitted sheet on at all times. We paid $583 for a queen back them. We have just reported issues to Serta, who told us Sleep Innovations makes the mattress for them. Sleep Innovations are now Innocor Comfort out of New Jersey. We have to deal with them and not Serta. Wish I would of known that back then. The issues we are having is that the Gel Foam has shrunk 1.5 inches on the foot of the mattress and 1 inch on the one side, across the entire width and length of the mattress. In addition, the seams are coming apart and separating on the top of the mattress cover. Innocor emailed me a form to fill out and I have to send them a copy of the Amazon receipt and photos of the issues. We will see how the warranty comes into play and if they make good on a replacement or refund. Will keep everyone updated.

Not Bad for a Serta-ish Mattress
We had a spring mattress that was causing back problems, went to 100 stores and looked at the memory foam options, then decided to buy this one because it was less than half the price. The one caveat is - the mattress says it's Serta but it's not really. It's made by Sleep Innovations (who is not Serta). We talked to support about it when all the docs showed up in a Serta envelope but were labeled as Sleep Innovations and they seemed confused about it as well. Then we called Serta to ask about it and they said they sold the rights to Sleep Innovations to make the mattress and use their logo to help sell it. All very confusing and more complex than it needs to be - but at the end of the day, we like the mattress so far and it wasn't outrageously expensive. Now onto the actual mattress...

It's definitely pretty firm. I think we've had it long enough now that it's officially "broken in". We did add a topper to it to make it more comfortable. If you have a low bed platform, you'll probably want to buy a solid riser (unless you like doing an ab workout to get in an out of bed). So far, I'd say worth the money. Will come back and re-update in a few months.

4 years later and it's still wonderful
I waited to write a review ... and then I forgot about it. I bought the mattress in 2012 and today in 2016 it doesn't have dips or depressions where we sleep and is wonderfully comfortable. There are two things to consider about foam mattresses and it's a little confusing. 1) FIRMNESS - This is is ability of the mattress to support you body without sagging or forming depressions. This has to do with the density of the foam. That's why some reviewers talk about how heavy this mattress is - it's because it's so firm - and that's a good thing. It's why 4 years later the foam is still in good shape. 2) SOFTNESS - This is the Pillow Effect on the top of mattress that gives you comfort. This mattress is very Firm but not Soft on top. And that makes it feel a little "rock like" to some. If you like a lightly pillowed top I HIGHLY recommend a 2.5 inch gel mattress topper. (The one Costco sells is perfect). I know it seems like the whole mattress is now more expensive but too many other less expensive mattresses sag (are not firm enough) to hold up over the years, and that's false economy. Also trying to dispose of a heavy foam mattress is not fun. My husband and I think this mattress is wonderful.

Firm. Supportive. Not Plush.
We have been sleeping on foam mattresses for a long time and will never go back to springs. This mattress in particular has excellent support characteristics but if you are looking for a "plush" feel, you will need a topper. This is a firm mattress which supports the body. It is not a mattress you sink into like a cloud. Some will equate that firmness with being an uncomfortable mattress but really it is just for people who prefer firmness to plushness. Before you buy this one online, you should go to your local mattress store and ask to try their most firm mattress. You must lay on a foam mattress for more than a few seconds to give it time to adjust to your body. If the firm feels right, this will suit your needs. If you need plushness, keep shopping.

On a side note, another advantage to a foam mattress of this thickness is that you do not need a box spring. Whatever you put this on will be fine for a bed which means you can make a pretty cool artistic platform beds, or set it on a board or cinder blocks or whatever and as long as there is a flat surface directly under the mattress, the feel will be the same as if you used expensive box springs.

not for us
This gel foam mattress was really hard for me. I was 9 months pregnant when we got this mattress and I thought it would be good because it can help me get a good nigh rest by having a good support. Nope. I was wrong. It felt like I was sleeping on the floor. Every time I move it hurts. Plus it wasn't comfortable because it was hot. Don't know why since it's suppose to have a gel foam but I guess that doesn't work for me. If you prefer plush mattresses, this is not for you.

Comfortable
I've purchase memory foam toppers in the past and wound up very unhappy with them. I would sink in too much and wake up throughout the night just to turn over. I've had no problems with this and now realize there is a HUGE difference between toppers and a real memory foam mattress.

First off, this thing weighs a lot, nearly 100 lbs. If you don't have a strong man to help you with this, you will have trouble. UPS had to help me in the door with it on a dolly. It arrives in a box, contorted and airtight sealed. Unpacking was a two man job and we unpacked it right on the frame.

This mattress does not sink much when you lay on it and reminds me very much of quality mattresses of years past (prior to pillowtop.) No achy back from this mattress! The hardest thing we had was finding a proper platform for it. Wound up going with the Structures by Malouf HIGHRISE Folding Metal Bed Frame 14" High Bi-Fold Platform Bed Base, KING and didn't even need plywood or anything. We put the mattress straight onto it and this was an affordable option over a platform.

I will need a new twin mattress soon and I will definitely be getting one of these mattresses for that bed.

****UPDATE: Aug 14, 2012****
I now own two of these. After having owned the first one for quite a while, I felt the need to come back and clarify something.
Foam mattresses and toppers are hot to sleep on. I thought everyone knew this, but since they don't, I needed to let them know. If you are prone to being cold, you will like this mattress. If you are prone to being hot, you will hate this mattress and definitely wake up sweating.

GREAT MATTRESS
COULDN'T BE HAPPIER. I AM A SENIOR WITH SEVERAL ORTHOPEDIC ISSUES. BECAUSE OF PAIN IN MY HIP I WAS HAVING TO SLEEP ON THE COUCH, WHERE THE DEPRESSIONS BETWEEN SEAT CUSHIONS FIT MY CURVES. NOW I CAN SLEEP IN BED AND MY HIP DOES NOT HURT. I HAVN'T BEEN ABLE TO SAY THAT FOR 2 YEARS. SHOULDER PAIN ON THE SAME SIDE DID NOT RESPOND AS WELL BUT IT IS ALSO IMPROVED. SINCE I AM MENOPAUSAL, HEAT WAVES -NOT FLASHES- KEPT ME FROM TRYING THE ORIGINAL TEMPERPEDIC TYPE MATTRESSES, BUT THIS SERTA GEL FOAM MATTRESS DOES NOT TRAP THE HEAT, JUST LIKE THEY SAID. SINCE THERE WAS SOME DISCUSSION ABOUT SMELL, (AND A SERTA PILLOW I PURCHASED DID HAVE A STRONG ODOR FOR A FEW DAYS) I CHOSE TO OPEN THE MATTRESS IN ANOTHER ROOM. THIS WAS NOT NECESSARY, ODOR WAS VERY LOW. I HAD LAID IT ON A SHEET AND WE WERE ABLE TO MOVE IT EASILY TO THE OTHER ROOM. GREAT PRODUCT!!