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Kingsdown has been around 1904 and provides competitively priced, luxury style mattresses -- many seen in mattress retailers and home stores. You can also find them sold online through larger mattress retailers. They offer a variety of mattress designs -- from latex, gel foam, and innerspring vareties. Though most customers like their mattresses at first, there are some complaints about durability problems over a short duration reported by customers.
Oso is an online foam mattress in a box company owned by Reverie, which makes lines of luxury foam mattresses and adjustable bases. Where Oso is different than other brands is that it has Dreamcell™ foam springs, which are made of latex foam and provide added support in the base layer, while being ventilated and cushioning the body without pressure points. Most folks like their Oso mattresses!
Based on our aggregated reviews and our scoring method, we recommend Oso in this match up!
See Our Full Review of Oso
If you are considering purchasing, keep reading below for information on feel. They, sadly, get some low reviews from customers. Some have had great things to say about how their mattresses work for them, but many others have had complaints about feel.
Based on the reviews, these mattresses have above average supportiveness, which is hopeful for those that are looking for something to align their spine at night. That said, some folks have had issues with the firmness and support levels overall, so make sure to do some extra research on the firmness and whether it will work on your body.
Edge support is how much a mattress props you up along the sides of the mattress. These mattresses have good resistance, but heavier folks may experience some contouring.
Finding a long lasting mattress is great, but it's not always that easy. These mattresses are not rated well for their longevity by reviewers. That said, some sleepers may discover their mattresses lasts more than a decade, while other mattresses may not last very long at all. If you are bigger in body type, take a look at the reviews before purchasing.
These mattresses have positive customer satisfaction scores overall. This means that there is significant positive feedback from customers, but with a few caveats. Some folks didn't like the overall feel. Look on below to learn if these will mesh with your body!
These mattresses can be described as supportive for most, which means they egonomically work to straighten the spine for most sleepers. That said, there are a few customers that have complaints, so make sure that your pick fits your sleeping preference and body type.
Overall, most reviewers report these mattresses have good edge support, which means most don't feel like they will fall off the mattress when rolling close to the edge of the mattress.
Bowling Ball & Density Tests
In bowling ball tests where the firmness is measured across the mattress, these mattresses have good even support throughout the surface. However, some customers have complained about support over the long term, so make sure to look at customer feedback before buying.
Everyone wants a mattress that will last forever, but that is sometimes easier said than done. That said, data on materials, customer reviews, and tests make things a bit easier. These mattreses have good durability and should last longer than average, but some heavier folks may find that they lose some of their durability.
I got my Kingsdown mattress about 6 months ago. It is without a doubt the best bed I have ever had in my life. I went out to find the feel that you get in the Ritz Carlton and the Four Seasons. You know, really supportive but PLUSH-PLUSH-PLUSH. I use my mattress on a powerbase that I had already, and it is so wonderful that I don't want to ever get out of bed. I feel perfectly supported, but there is no pressure anywhere on my body. It was a little pricy (almost 3000) but it was SOOOOOooooooo worth it. I got it through a Mattress Giant locally and they were a pleasure to deal with as well. I hope I never have to sleep on anything but Kingsdown for as long as I live.View More Reviews
I've had my Kingsdown mattress for 14 months. It sags in the middle so badly that it causes me back pain. I'm very disappointed. I've had several Kingsdown mattresses before and was alway satisfied. Not any more.
We went through four different mattresses, and actually returned a discontinued Kingsdown mattress before getting this mattress as a replacement. Although we did not buy through Amazon (did not know at the time we could), this mattress is amazing. We tried the top of the line "number" bed, sent it back. Top of the line (and I mean expensive) memory foam number bed, and sent it back. Tried another Kingstown mattress that we still didn't like, and they talked us into this mattress....and I am so happy they did. We have had this mattress for over a year, and there are still days my wife and I wake up and say "holy cow I love this bed." I wanted to pass along this review, because we searched for a bed that wouldn't leave us with aches for two long, long years, and since the customer service was so good, I wanted to pass this along to other people.
We purchased this mattress a few months ago for our guest room. It is fantastic! Everyone who sleeps on it comments about how comfortable it is. It provides plenty of support with a cushiony layer on top. Now we're planning to purchase the same mattress for our master bedroom. One caution: this mattress is very deep so a low-profile box spring is a must.
We tried this bed in stores before purchasing on amazon, it was slightly cheaper here. My husband and I had a sleep number for 5 years before deciding to try something new. We really like that this bed is firm, but has cushion pillow top as well. We've been sleeping on this bed for a few weeks now, and its fantastic. I am pregnant, so sleeping is not the easiest thing for me anymore.
I purchased an 800 series top of the line mattress in 2010, and after 8 years one side started to sag, I called and they sent out a mattress marshal to examine and do his measurements. After a week I received a letter stating that the sag is more the normal but they are going to void the warranty because there is a small stain on the other side of the mattress, stating in the letter that is the cause of the sagging. That is bunch of lies they just don't want to stand by their warranty, please stay far away from this company. When I purchased this mattress nowhere stated that any stain will void a warranty, I really took good care of this mattress, I even have two sheets that cover the unit. So this is definitely a defect that they have recognized but getting away with not replacing it. I wish there was no star, they don't deserve even one.
My personal experience was fantastic. We co-own a little hotel at the beach and bought a dozen Kingsdown bed sets in 1997. We are only NOW having to replace them, nearly 20 years and these were used most every night! We bought the higher end units and that quality difference is really obvious - you get what you pay for. That's why we got a dozen more to take us into retirement last summer - and a decent deal too. It doesn't hurt that many of our Booking.com reviews talk about the comfortable beds
I thought I had found the perfect mattress in 10-14 and was happy with it until 3 months ago the side wall of the mattress came apart from the rest of it. Kingsdown did send out an independent person to look at it, he agreed with me (at the time he was in my house, evidently he just wanted to appease me) that the mattress had broke down. However he didn't relay that information to Kingsdown and they deemed the problem normal sagging. And because it had a small stain on the opposite side the warranty was voided, not sure why they bothered to send anyone. It was a waste of time. I actually contacted them because I thought they would want to know the mattress was defective. It had nothing to do with sagging, 3/4ths of the mattress is ok, but you will roll off the side if you aren't careful.....BAD construction and a waste of my money. Never buy a Kingsdowns!
buyer beware! stay away from this company! shop somewhere else! i purchased a kingsdown high end mattress and box spring set from se and after 3 years they started breaking down. after sending a third party furniture co. for inspection that determined that the box springs were truly defective and made the worst noise he ever heard when he turned in his report kingsdown weaseled out of their warranty because they said i had not used a center support. even the tech said they will find any avenue they can to "void the warranty" like if the tag is missing, any stain, etc... i tried to work with them to back their product but they chose profits over customer satisfaction. highly unsatisfied customer. i will never buy from sleep experts again or a kingsdown product. truly a pos! if I could give them a rating less than 1 star I would. read the other reviews! they are exactly right in what they write. kingsdown is a sham of a company and a pathetic excuse. junk, junk, junk, junk, etc...
The only reason they are getting one star is because I couldn't rate zero or negative stars...Two years ago I purchased a top of the line pillow top Kingsdown mattress from a local Sleepys in my area. I had previously owned a Kingsdown mattress for approximately 12 years and it was fabulous which prompted me to purchase another. Two years later I am unable to get out of bed without grabbing the edge of the bed and pulling myself out of a sinkhole in the middle. I called the company and they sent someone out to take pictures and measurements and have just informed me that a normal amount of "sinking" has occurred and they are denying my claim. So let's reiterate...they think it's perfectly okay to spend $2,500 on a mattress and in two years have to pull yourself out of a hole??? They are appalling...I don't think it's normal to spend my hard earned money on a crappy mattress that the don't even stand behind. By the way I've since went on line and have read that this is a common problem with their mattresses. My advice? Forget they exist because with this level of "customer service" they'll be out of business in no time.
Received a defective mattress and we can not get kingsdown to honor their warranty. Stuck with a $3,500 mattress that sags more than our 10 year old mattress that we replaced.
You would think that after 3 years, this bed would still be usable. But now there is a big canyon in the middle of it. They sent an inspector who also agreed verbally. But then after (mind you this is months of calling) we received a letter from them saying that they wouldn't honor the warranty. Scam.
I can barely sleep at night on this mattress. I think the top just sucks in the heat and keeps it there. Very disappointed.
Bed was super saggy after 4 years and so I had to get a new bed. Not worth the high price tag when you can get a saggy bed after 4 years from anyone else.
Luckily I was able to get an exchange, which reading the other reviews seems like a shock. After only 3 months, I had sagging and the inspector who was sent out agreed so I got a new bed. Well, a couple months later, more sagging. The only reason I am adding a star is because they at least sent us a new one.
We thought it would be the answer to our problems, but after only 3 years we have a mountain in the middle of the bed.
I sink into this mattress and I am not that big of a person. It causes extra back and hip pain because it is too soft and lumpy.
We bought a Kingsdown MYSIDE mattress with a latex top at WGR in Green Bay WI. It was a floor model. Within 2 years the Latex top ripped and split on the inside and Kingsdown would not stand by their product because in was a floor model. We loved the mattress so much I tried repairing it myself 5 times until it just would not hold. It is too bad. They make a quality product, but would not stand by it. MY wife's side has held up beautifully. My side was clearly a defect in the latex.
DO NOT BUY a Kingsdown Mattress!!! I purchased a new Kingsdown King size mattress in June 2018. Within months of owning the bed it began to sag and created a hump in the middle. After contacting Kingsdown for the warranty, they sent out a third party inspector who indicated the mattress had a 2” dip on the right side. Kingsdown denied my warranty claim stating it was within normal wear measurements. Now, if anyone else is considering spending over $1,500 on a mattress, I’m sure you’d like to ensure you have a product that lasts for more than a few months and the warranty is valid. Nice job Kingsdown you lost another customer!!!
When we removed the (overpriced) mattress cover which seller (Art Van - maybe there’s the answer- they buy “seconds” with minor or “invisible” defects to sell so cheap) insisted we needed to buy to not void warranty, there was pilling on the surface, which was a “stained” tan color! Looked like “bugs”, but they are just fiber balls that stuck to “fuzzy” surface of mattress (like “pilling” on a sweater) and have to be picked off by hand!
just now-Edit My Fiance bought a bed on Aug 07, 2018 with warranty. It wasn't even a yr when we started to feel it sink in really bad and be very uncomfortable to sleep in, so we contacted Teppermans. They sent a man out to run some test on the bed to say that the bed has a visual drop of only .5" which is standard to the amount of time we had the bed. which made no sense because when we laid on it, it sunk in a lot more than that making it very uncomfortable. They contacted me to tell me they are not able to do anything about it and referred me to contact the manufacturer "kingsdown". Which I did, they responded with the same response that our "warranty" is not valid due to not meeting the guidelines on have a drop of 1.5". So basically we are stuck with a $1500 mattress that sucks along with the warranty (which is pointless). I am currently pregnant suffering from major back problems due to this sinking bed that is only a little over 1yr old. Therefore I DO NOT recommend to buy a mattress here due to my experience and seeing it took about 4 months to get a final response which wouldn't have happened if i didn't call back several of times.
I would like to submit a review of Kingsdown's customer service and warranty promise. I would never buy another product from them. Long story short: Their product failed (Hudson firm mattress, $1600) sagging after 3 years. They would not honour their warranty because the mattress was bought at Sears..(because Sears is out of business they can't confirm the purchase... ?????). Not only is their product inferior..... they demonstrated terrible business practice.
Absolutely the best mattress we have ever owned! We even bought one for our guest bedroom. Love them!
We purchased a Series 4.0 QLPSF top of the line model from Art Van Pure Sleep. It was customized for my weight (6' 185 lbs) on one side, my wife's (5'6" 125 lbs) on the other. The mattress was only comfortable (but not awesome considering the $3000+ price tag) for the first several months and a year and half later, there's a crater -- and yes, I mean crater -- in the middle. Excessive sag is putting it lightly. My wife and I sink to the point that we are touching and are both experiencing consistent lower back pain with no suitable sleep position. The warranty only covers replacement and at this point I would not wish a Kingsdown mattress on my worst enemy, and Art Van has filed for bankruptcy. Worst major purchase I've ever made. Live and learn...do not make my mistake!
We purchased 2 Kingsdown mattresses in 2009 to improve sleep and make the guest bedroom a place where family and friends wouldn't want to leave. Eleven years later we do believe now is the time to purchase a new mattress. I am reluctant to spend the 3 months scouring from mattress dealer to mattress dealer knowing that everyone who slept in our guest stated that that bed was the most comfortable they had ever felt. Most reported the best night sleep.
good at first but box springs are weak the metal bends and mattress rolls you off .couldn't get any one to come out and evaluate so i had to do it my self took for ever to hear a responce then they only want to replace mattress for $350. not worth it. would not recomend this to any one
I got my Kingsdown mattress about 7 years ago. A the start it was great but withing 4 years it developed a problem with a depression forming in the bed. Now 7 years in it's terrible and to the pint i need to get a new mattress soon. Given the very high cost of this mattress I'm very disappointed it only lasted for a short while. I believe the warrenty is only for 5 years - so this all makes me very sad.
My review is very simple. We had a Mattress with a 20 year full warranty. The mattress started failing around year 6 but it wasn't until year 9 before it was bad enough for them to warranty. Think about that... if I bought a new car with a 7 year 70,000 mile warranty that would just lose power every once in a while and they tell you when it won't restart we'll take a look but if there's a coffee stain on the passenger seat we void your warranty.
Don’t Buy these mattresses they are cheaply made .mine wasn’t even 2 years old and now I’m having problems with it.they said I have a 10 year warranty and they aren’t honoring it.
We have had two Kingsdown beds (the second under warranty from the first) they have both dipped more than the warranty specified 1.5". They have now both been replaced under warranty. My wife and I are in our 50's and of normal weight so there are no reasons for the failure other than the materials or manufacturing. There have been no arguments with warranty replacement but not an experience we should have to undergo every 3-5 years. So I won't be accepting another replacement from them I will go elsewhere with the credit
Very comfortable. Could be a little firmer.
Super comfy my parents love it, you may need a foot stool to get in the bed once you add the box spring because it’s a little high
Had back and hip pain before moving to KD Courtney Plush Hybrid mattress. Within a couple of nights the pain was gone. Full night's sleep as well. The exchange from previous mattress we purchased to this mattress was seamless and professionally handled. Richard at the West Broad Street store was exceptional. His knowledge, patience and professionalism were spot on.
Rather firm matters for my taste, but is clearly well constructed. Worth the money for sure. Delivery was super nice as well. They hauled it upstairs for us on arrival. Solid purchase.
Absolutely worth the money wake up every morning
My family and I love Kingsdown. They’re always a good brand. I got the more firm version as it helps alleviate any lower back pain. Overall, I love it.
It's ok, my son likes this mattress
Amazing!!! Doug was a huge help. We love our Kingsdown!!!
Was unsure at first if the mattress was going to feel as good as it did in the store. I have back pain. I'm too 220 lb with a lot of backside. It is often that I have back pains. Slept on the mattress the first night. Woke up the next morning thanking God. No back pain. Mattress is worth the money will buy again.
This mattress was soft and comfortable in the store. The one we received was lumpy in the middle and significantly firmer than the one we tried on the floor. Awaiting to start the 30 day comfort gaureentee. Hoping our next experience is better.
Amazing mattress and Amazing company! I am a professional athlete who competes for TeamUSA and I can't believe the difference this mattress has made in my performance and recovery! If you are looking for a new mattress I highly recommend this one!View More Reviews
All I can say is: get it and try it. You will love it.
I got the mattress and immediately fell in love with how well it treats my back. I can sleep most of the night on my back, with little to no need to toss and turn. My sleep on this mattress definitely feels more restful, and I don't wake up with as many aches and pains. I had a concern with a seam on the mattress, and the customer service was superb. All my questions and concerns were treated patiently and professionally, and met with outstanding resolutions.
I would not hesitate to recommend this mattress to friends and family. I am happy that they offer such a great return policy, because even though I didn't end up needing to use it, it made getting the mattress feel like a safe decision.
I have had the OSO queen size mattress for about 3 months now, and I wanted to wait for a few months before rating it. My wife has had back issues for about 15 years and it seems like we have spent thousands of dollars trying to find the right mattress. We have tried every kind of spring mattress and even tried other memory foam mattresses. My wife has not been able to have a decent sleep in a long time often waking achy and tired. When we received the OSO mattress in a box, very neat by the way, I opened it up and let it puff up for a few hours before bedtime. We tried the firm end the first night and found it was a little too firm for my wife, so we rotated the mattress to the soft end. After three weeks of sleeping on the soft end my wife was still waking up with a sore back, which worried us. But, after the three weeks, she started sleeping longer than her usual 5 hours a night. It was gradual, but now she is up to a 8 or 9 hours of sleep a night and she is loving the mattress. I guess she needed to work out the kinks from the previous bad springy mattresses. Based on how my wife is feeling these days, I would highly recommend this mattress.
Thank you OSO for your amazing design!
I'll admit it, I was a bit worried about buying my mattress online. I mean, who wouldn't be?? That said, I could not be more pleased. I have had the best three nights of sleep I have had in years, and it's legitimately due to my new mattress. I love the plush/soft side, and my Boston Terrier loves the firm side!
Seriously - thank you for providing an affordable, well-built, non-toxic, comfortable bed.
I have had major numbing in both of my arms while I sleep since 11 years ago. I awaken numerous times a night and have to reposition my arms so they will wake up. My husband and I received our OSO mattress a few months ago. The first morning after sleeping on this mattress, I woke up and realized my arms were not numb. Every night since then has given me the same results. I am so happy to finally sleep and not have the numbing issues I was having. I just can’t believe how much of a difference a mattress would make. Thank you!!!
My husband and I have been sleeping on our new OSO for a couple months now. The setup was super simple. The mattress is supportive yet soft. Our favorite part is that we don't disturb the other person when moving/shifting! So glad we invested in quality sleep.
I really appreciate the option of using the soft or firm side of this mattress. I prefer the soft, and find it very comfortable to sleep on. My wife and I are able to move on our side of the bed without causing much noticeable disruption to each other. We are very impressed with our new OSO mattress, and are very glad we made the purchase..
We love our OSO Mattress. We bought it after reading a friends review and thought we would take a chance. We are so happy we purchased it. No other mattress has been this great, it offers support while still being soft and comfortable. Thanks OSO!
This is the first mattress that I've ordered that was delivered in a box and I'm never going back. It was quick, free shipping, and I was able to open it and lay it out easily. I love how soft it is and how well I sleep every night! I will never go to another mattress.
I'd forgotten the experience of a true, undisturbed 7-8 hours of sleep! But I have it most nights on our new OSO mattress. My shoulders sink right in given being a side sleeper and I'm totally acclimated to the soft side. Very happy with the experience!
We purchased this bed for our toddler daughter as her "big girl bed", and not going to lie, we are all a bit jealous of her at this point! It is so soft, but just firm enough for a toddler! It is actually also perfect for cosleeping, not to firm or too soft. We have another bed made by a similar company and this one wins by a mile. Recently my mom came over and layed in the bed saying her back hurt. After getting up she felt so much better she literally ordered the bed the next day! Big fans over here...clearly ;)
I've had probabaly 7 different mattresses in my life and this has been the greatest! I wake up feeling refreshed and not sore like I'm used to. It's quite an upgrade! Thanks Oso!
The OSO mattress is extremely comfortable - it is nice and soft yet still supportive. I like the removable/washable cover, which will make it much easier to clean when needed. I would highly recommend trying one and would not hesitate to buy another the next time I need to replace or upgrade a mattress!
This is a great mattress. This is my second foam concept mattress. I will never go back to the traditional box-spring style. It really provides support where it is needed most. I would highly recommend.
This bed is amazing. You will not find a more comfortable or versatile bed at this price!! 10/10 would recommend.
The mattress arrived ahead of schedule in a box that was smaller than I expected. The sales person I spoke to when buying the mattress told me that we should move the box into the room before opening it. We put the mattress in our frame on top of the box spring and as soon as we cut into the plastic the mattress started expanding. The vacuum seal is unreal on these things! Within two minutes we had a regular size mattress. This mattress is absolutely perfect for our guest room! When I called my mom to ask if she preferred a hard or soft mattress for her visit she was grateful to have a choice (she picked soft!). Thanks OSO!
My OSO mattress is seriously amazing! I love the option between firm and soft and honestly, they both feel great!
Whenever I have friends stay over, my favorite thing is that I can't feel them move at all! I would definitely recommend this mattress to everyone, especially to anyone sharing a bed!
Worth every penny!!
I had terrible back pain and then started taking tylenol before bed. That helped some, but I would still get up with back pain. We got this new mattress and I haven't had to take Tylenol for my back and I now wake up without pain and can finally enjoy my day!
I got my new OSO mattress two weeks ago, and have loved every night of sleeping on it. I've woken up without ANY back pain, unlike the tightness I had every morning on my old mattress.
I also love the versatility of being able to choose soft or firm! I had no idea what my preference was, and the OSO made it easy to take the leap because I wasn't forced to choose. (I've been sleeping on the soft side.) And with their return policy, I had even more peace of mind.
This bed is amazing!!! When it first arrived I unpacked it and laid down a few hours later (after passing out immediately on it) I moved it to my bedroom. I would and have highly recommend it to anyone!
My husband and I purchased our king sized OSO mattress about 2 months ago. We have been thrilled. The set up was simple and getting it into our condo (up stairs and around corners) was no big deal with the creative packaging concept. It also had no chemical odor when we unpackaged (which I was concerned/skeptical about).
We sleep on the firm side and both love it. It is as cool as it claims (no waking up with a sweaty neck and back). I also struggle with poor circulation and arthritis and used to wake up every night with limbs that had fallen asleep/very achy from the bends and pressure points of our traditional mattress.
I have had significantly less issues with the OS0 and feel comfortable highly recommending it for arthritis/back pain. When it's time to purchase again, we will stick with OSO and never go back to a traditional box spring.
We are happy to finally have a mattress that is quiet, and comfy to sleep on. For years our classic mattress would bounce and make noise with every turn.
The OSO is like lying on a soft raft, supporting the parts that need it most. We like the "firmer' end now but anticipate switching to the soft end as we want- I enjoy options.
If you buy an OSO, buy sheets with regular pockets (not deep) for a smoother, unwrinkled look.
Love the versatility of soft and firm. Moving it in was so great compared to moving out our old king (traditional mattress).
Overall we like the mattress a lot.
Ive had a Sleep Number for years me and my wife like it. But... even with 20 levels you still particular for no reason feel like you are sleeping on an air bed at your moms house lol. We got a California King OSO, to replace the Sleep Number California King. This was a great decision, my wife was so in love she sleep through her work alarms. Its a great bed, id recommend it to anyone.
I've had my OSO now for over 7 months and couldn't be happier!
At first I was a little nervous purchasing a bed online. However, the 101 Night Promise helped me make the plunge! I loved being able to try out the bed in my own home to make sure it was right for me. I currently use the soft side, but knowing I can change over to the firm side if my preference ever changes is very comforting.
In addition, as a (somewhat) recent college graduate who is prone to moving every few years, the flexibility of the foam mattress and portability (being able to fold it and transport in my compact car) is also a huge plus.
I usually wake up 1-2 times during the night. With this mattress, slept completely through the night. Materials look super high quality, love that I could fold it up to get it through doorways.
I love the Oso mattress. There are some nights when I need to lay on the soft side and other nights when I need more support. I don't have to worry about needing a new mattress for different needs. The Oso mattress has also been very kind to my back after major surgery. I love it!
I've had a king size mattress for a few weeks now and this thing is amazing. I have never owned a foam mattress before and this is a great introduction. I love that you can choose what side to sleep on depending on how your body is feeling that day. Top notch!
I’ve never really had a comfortable mattress before so this has been one of the best decisions we've ever made! I’ve struggled with back pain for a few years and my pain has significantly been improved and I feel a million and one times better during the day!
The first night we tried the mattress we slept on the firm end and had a great sleep. The next night we slept on the soft end. We slept ok but it just seemed too soft. Even sitting on the bed putting socks on, it was just too soft. We would love a mattress that was completely firm.
Very luxurious feeling mattress, yet with a sleek and modern design. I really liked the handles, made it easy to move into my apartment and it's lighter weight. I started with the firm side them switched to soft. Love my OSO mattress! Would highly recommend!