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Diamond mattress is a family run mattress company that has been in operation since 1946. Their big differentiator is that they actually make their own pocket coils and process their own memory foam. This is a bit different than many mid-tier mattress companies that outsource their manufacturing. Their specialty is pocket coil and innerspring mattresses, though they also build memory foam mattresses as well. Most customers like their Diamond mattresses, but there were some that had issues with durability and initial feel.
Sealy is a common brand that you would see in a big box mattress store or warehouse outlet. Sealy is part of a publicly traded conglomerate, Tempursealy, who owns brands such as Tempur-Pedic and Stearns and Foster. With some competitively priced options, Sealy is an intriguing brand with many firmness and material options, but there are some durability complaints reported by some sleepers.
Based on our aggregated reviews and our scoring method, we recommend Diamond in this match up!
See Our Full Review of Diamond
Sealy Posturepedic: 7.3/10
Sealy Posturepedic: 7.3/10
Sealy Posturepedic: 7.1/10
No Back Pain:
Sealy Posturepedic: 7.5/10
Sealy Posturepedic: $599-$1399
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These mattreses have mixed emotions from buyers. There are reports from many folks of good initial comfort and happiness with their purchase, but there were others that didn't feel as positively. Make sure to read more below to make sure one of these mattresses will work for your body.
Whether a mattress is supportive or not is the difference between comfort and pain for stomach and back sleepers. Side sleepers also need a responsive mattress for their bodies. These mattresses are above average when it comes to support. That said, some folks didn't feel supported enough so if you are heavier, make sure to do extra research.
Most customers like the support in the edges of these mattresses. Some, however, had some complaints about the support.
Companies that focus on quality control and testing will more than likely build durable mattresses. Some sleepers may have disagreements with companies if they don't have these attributes. Sadly, customers have mixed feelings about lasting comfort from these mattresses. Some report finding lasting comfort, while others complain about discomfort over the short term. Make sure to do some extra research before buying.
Not everyone feels positive about these mattresses. Some folks report feeling comfy, but others experience discomfort. One of these may work for you, but it makes it difficult to figure out. Take a look below to learn more about the specifics and to see if the mattress will work for you.
These mattresses don't fit the needs of everyone in terms of support. Though most report initial comfort and support of the spine, others have had issues with alignment long term. If you are thinking about buying one of these mattresses, take a look at the specs to make sure it will work for your body.
Edge support is a popular measure for those that like to sit on the edge of their mattress. Others aren't as tied to it as a end-all for a good mattress. Some folks feel strongly about support issues so make sure to do added reading if edge support is an important item for you.
We all want a mattress that is going to last over a decade, and when our mattress is painful after only a few months, we feel cheated. That said, it is much more difficult to find the right durable mattress nowadays. With the crazy amount of choices now, some companies are focused more on capturing mind-share and sacrificing quality. When it comes to these mattresses, unfortunately, they have some sleepers who have reported durability issues over a short time. Not all customers will experience durability issues, but make sure to review the return and warranty policies before buying.
Not as good quality as I was expecting, but you get what you pay for.View More Reviews
I can't complain about this bed -- I am really happy with it and it feels comfortable to me. The only annoyance was that the shipping was late getting to me.
I've had a diamond for a couple years and it is definitely an okay bed. My hubby likes it more than I do. I want something more luxurious.
My last three beds are diamond beds. Their longevity isn't as good anymore, but I still love their products and stand by them as a good bed!
My bed started falling apart after only 3 months. It feels as if you are sleeping in a valley 10'' deep. We are not heavy people. After 9 months on the bed, we couldn't take it anymore.
We had two prior Diamond mattresses that we loved so we thought that we should get a third. We finally found a place with one and that is when the problems started. After only a month, it started to sag. It was like sleeping in a gutter. I called and they sent an inspector who said it was a 7/8 sag, which is within the normal range. The problem was when you get on it, it sags way worse. Sure, I am 200lbs and 6 foot, but my wife is the only 100lbs and the same thing was happening to her!
Purchased the Ethos latex mattress 6 months ago. At first it seemed comfortable, but after 2 months we couldn't sleep on it. We rotated it but nothing helped. Every morning I woke up in terrible back pain. Then I found out that the latex wasn't even latex. 80% polyurethane foam, 6% rayon & 14% latex! This seems like blatant fraud to me as this was very expensive and we thought we were buying pure latex. Very dissappointing.
I love soft beds and this one cradles me into a cocoon every night. I absolutey love the way it feels and think it is perfect if someone loves soft mattresses.
Maybe it is too soft for me because I feel like it is taking my body some getting used to. But the materials seem to be high quality so I am hoping that my body adjusts.
Just doesn't feel right for me. Luckily I was able to send it back right away and the customer service was good.
I am finally sleeping through the night again. I had an awful spring mattress and so happy that I opted to get a new latex bed.
I have purchased four mattresses from them over the years and am getting ready to purchase a new one. Not that the others need replacing, they are still in great shape, they were left behind in a move unfortunately. Dollar for dollar you won't find a better mattress anywhere. They are incredibly fast as well.
HORRIBLE place. I called and spoke with a salesman 2 days before I went in because their store is about an hour away from where I live. I told them exactly what I needed (I needed a custom mattress for my RV). They gave me prices of 2 different mattresses and explained to me the difference. I thought the prices were fair so I showed up and Nick was completely unprofessional. When I told him which bed I was most interested in he quoted me a price almost $250 higher than what I was told just 2 days before. He told me that whoever told me that does not know what they are talking about and he was sorry. I told him sorry does not pay for my gas to get down here. Sorry does give me back the time that I lost. Again he said he was sorry and there was nothing he could do. I even had proof of the prices I was given. When I told him I was going to take my business elsewhere he said "you think you can find a custom mattress for cheaper". I told him I know I can. Later that same day I bought a custom RV mattress 60x72 for $400 including taxes. Plus the mattress I purchased elsewhere was softer, had thicker memory foam, included a cool gel memory foam and had a better warranty. Stay away from these guys. They have no clue what customer service is. The first guy I spoke with on the phone was great but when you get there it is a completely different story. They will jack up the prices at least 35%. Trust me there are better options out there for a custom mattress or a regular sized mattress. You would think getting it directly from the factory would be cheaper but that is definitely NOT the case here.
Don't waste your money on this product they won't stand behind it when it counts. I bought this mattress because the sales person told me they would back this product if there were any problems. Well five years into a twenty five year warranty the side seams have pulled apart and the memory foam has failed badly. they sent out a contracted inspector who;s only job is to deny claims not provide the customer with quality service. Save your hard earned money and buy anything else !
They aren't so helpful with a warranty unless you live there. Don't buy these mattresses outside of Utah because they will tell you to send the mattress to them at your cost THEN they will determine if it qualifies under the warranty and they will "fix it". Then you pay to ship it back to your home, even if it falls under their scope of warranty. Bad customer service!
I've bought over 20 mattresses through the years and my uncle bought hundreds. Ernie is the greatest. Can't believe how he can hoist a mattress on his back and carry it. Hope you are well!
I went here as a kid, the owner is a great guy. The location is the best
I have owned the Ethos – Tranquility Luxury Medium Mattress (Approx. value $2800). Have been very satisfied with the mattress for around 3-4 years. Even though I have owned this mattress since October of 2014. The mattress was delivered to my Southern California residence in Santa Clarita. During the 1st year of purchase. I have only slept on this mattress once or twice for every 60 to 90 day period, It was not until September of 2015, when I have fully moved back from my Northern California address did I sleep on this mattress on a daily basis. So I have really had a good 3-4 year comfort experience before the mattress started to show the deformity. This deformity has resulted in not being able to sleep on my side of the bed due to the sagging of 1.5 to 2.5 inches over approximately 25% of the mattress. This uneven sagging is observable without the need for anyone to sit or even lean on the mattress. About 4 weeks ago I have contacted the reseller from whom I have purchased this mattress and was given the manufacturer contact information. I contacted Diamond Mattress and was required to submit photos and fax over a warranty claim form. Diamond required to send over an inspector to document and process the warranty claim. Diamond Inspector showed up on April 10, 2019 and took more photos and was able to determine that the deformity maybe corrected by replacing the broken bed foundation. The bed foundation was purchased along with the mattress as supplied from the reseller which happens to be original Diamond Mattress foundation. Additionally, when inspecting the mattress the Diamond inspector was able to expose 8-10 inch tear in the mattress stitching (not related to the foundation issue) which was only observable upon turning the mattress bottom up. The inspector said that Diamond Mattress will contact us within a week. On April 18, we heard back from Diamond and were told that even though the warranty would cover the mattress for 10 years, the mattress foundation would not be covered? Asked about the tear in the mattress and he said something along the lines 'we should have reported this issue upon purchase'? I am speechless as to the lack of common sense of that statement with which the Diamond representative insulted our intelligence. How can the Diamond representative assert that the tear in the mattress was already there upon the time the mattress was purchased and delivered? And assuming that was correct, where is the quality control in releasing and shipping a defective mattress and foundation to a consumer? And how many consumers are likely to flip the mattress on its back looking for such a defect? The mattress warranty states that it may be void if the wrong type of foundation is used. However, even when Diamond has supplied their own foundation, Diamond Mattress would not honor their warranty. My experience has demonstrated that Diamond Mattress Warranty is a lie. Diamond should have stood by their product and I should have been provided with a non-defective foundation for this very expensive mattress set. Bottom line close to $2800 investment in this mattress set which is really only worth to me less than $1000. Effectively, when I have purchased the Diamond Mattress product, I have lost close to $2000. My recommendation to anyone who does not want to go through a similar experience D o N o t B u y a D i a m o n d M a t t r e s s
I purchased a Diamond mattress (Spinal Comfort) and paid more than I would have because of the 'Forever Warranty' feature sold me. I recently filed a claim because the upper portion (pillow top) is sagging. Diamond Mattress sent Integrated Bedding Group and reported 3/4" depressions on both sides, left and right, and the top left has shifted outward 2" in a 64" long area. The report also includes a faint yellow 30" stain. This was a pee stain from my baby. John, Diamond Mattress Warranty, said the stain voids my warranty. I explained it is a faint stain on the right side and the pillow top of the mattress is sagging on the left with a length of 64". This does not make sense. There is definitely a defect in materials and/or workmanship. FOREVER WARRANTY IS NOT TRUE. DO NOT FALL FOR THIS FEATURE.
I bought a Diamond Sleep Princess Pillow Top Mattress last Fall and was really looking forward to finally getting a good night's sleep. I got it home and set up and while it was ok at first, within the first three months it started sagging in the middle and has only gotten worse. Maybe I should've chosen a slightly firmer mattress, but all I know is for the money I paid, I'm very disappointed in the quality of this mattress and will never buy this brand again.
I did a lot of research before buying this mattress. The deciding factor was the recommendation of Consumer Reports. When I first received this mattress, in a square box, I was soooo disappointed and upset. I attempted to return it before opening it, but realized how expensive shipping would be. I returned to the website and their were no reviews but I searched some other mattresses with the same features and price points and discovered that it would, when unfolded, rise to it's full 12 inches and it did indeed have cloth covered coils (innersprings). It Did rise, and then some. I think it's about 13". Very comfortable, everything Consumer Reports said it would be. It's a little firmer than I would like it to be. It's not hard by any means, in fact it's quite comfortable and very good for my husband's back, he likes it a little firmer than I. after putting a good quilted mattress cover on, it added just the amount of plush and squish I love. I get a good night's sleep and wake with no stiffness or aches. I really like it.View More Reviews
Excelent matress, I wasn't sure to get it for my daughter since it didn't have any reviews but after a month of using it, she loves it, firm but comfortable; stays cool and no more joint pain.
We bought this mattress 2 3/4 years ago and I've been having chronic severe back pain for over a year. I had noticed that the bed definitely sinks in the middle when I lay on it and I'm a hundred and fifty pounds. We've only had this mattress for going on 2 years & 9 months. We loved it at first, until the past year. I didn't attribute my back pain to the mattress until I slept somewhere else and my back pain was considerably better. Everyday when I wake up after sleeping on this mattress my back hurts more than it does all day. My boyfriend has been sleeping in the basement on the couch because of his work shift for the past 4 months. When he sleeps on his mattress on the weekend he says his back hurts too. I just submitted a warranty claim, but have a bad feeling that I'm going to get the runaround from the reviews that I've read.
This matress is inches of metal coil and 4 inches of foundation nothing like I was expecting at all
My old mattress was very soft, in comparison this one is a rock, but I don't wake with the same sore spots. I have arthritis through out my back, shoulders, hips, etc but I'm sleeping better with this Sealy.
1 year later and I would certainly buy this mattress again.
Mattress is about 1yr 4m old and is terrible! It's well worn and sagging where I sleep and the amount of heat the 'cooling gel' holds in is ridiculous! I sweat all night long and wake up drenched. I wash the sheets almost every day now. I don't know what we were thinking when buying a foam mattress. When you squish foam it seals up all the holes in the foam eliminating it's availability to breathe! No brainier if we would have thought about it. Skip the foam it's not worth it!
Was worried that it was to good to be true.not a single thing wrong with it and it's absolutely wonderful to sleep on.saved us over a thousand dollars.
I bought this bed from another place and thought I would give it another review to help others out. First off I'm a bigger guy who is a furnace in bed with lower back probIems. I spent a month in the bed to give it a chance but ultimately had to take it back. It was soft enough to be comfortable and fall asleep in easily. Around 3-4hrs in I would feel my back slowly be unsupported and I would bottom out to the foam base layer due to my weight and the heat I put off would cause it to soften. I noticed though before my back would be unsupported I would sleep deeper and easier. My fiance is a belly sleeper and the softening would cause her minor back aches but she had liked the softness and comfort too. The bed felt as warm or a bit warmer as a spring mattress with a topper on it but a lot less hotter than a memory foam without gel. There wasn't too much off gassing. Overall construction was good but felt like this was for a lighter, cooler person.
Love it so far.I've had it for a few days and wish i would have done it a bit sooner.maybe is just me coming off an old futon 😝 but it's definatly plush but still firm
If I could give this matress 0 stars I would. After one month I noticed a moldy smell around my bed, I pulled my matress cover to find the smell coming from all over the matress. It's not chemical, think mold dish sponge. It's also sinking by bout 1/2 an inch, I weigh 160 lbs, that's after 1 month.
You can assume that any good sealy review is a plant/fake review. sealy is a trash company that makes trash products. I'm out $550, have no bed to sleep on, and couldn't be more furious. BUYER BEWARE!
I am 6'3'' and weigh 220 pounds. I prefer a firm mattress and have only slept on box springs my whole life. I am a side sleeper exclusively. I went to 2 separate mattress retailers and laid on every mattress on their showroom floor. Both times I gravitated to this mattress. It is the most firm of the 3 Optimum model mattresses. I laid on all 4 of them as they were side-by-side. They got softer and more expensive as I went up the line. I've only had this mattress for a week, so my review is an early one. I had no intentions of getting a foam mattress when I went shopping. I was concerned about comments about them sleeping hot. This mattress does not sleep hot in any way shape or form. The salesmen explained to me that the initial Optimum mattresses didn't have enough cooling gel and they have added more and it has resolved that complaint. I concur. I haven't noticed any problem with sleeping hot. The biggest thing you will notice with a foam mattress is you won't feel any pressure points like a box spring. When I laid on any box spring, I would immediately notice a pressure point on my hip and my shoulder. I don't feel anything on the foam. I have slept just fine for the past week and no complaints of back pain or any pain in the AM. I am impressed so far. Will have to come back on in a few months or a year and comment on how well the mattress is wearing. I have also read comments about this mattress having a odor when delivered. The mattress and the box spring were both in plastic when the delivery people unpacked them and installed them in my bed frame. I didn't have any odor at all, so I'm not sure where that is coming from? I bought 2 of the Optimum pillows which I slept on before my mattress was delivered. They smelled a bit for a few days, but it gradually went away. I did not buy this mattress from Amazon, but decided I would comment on it here after I did buy it. These reviews of all kinds of mattresses are so frustrating. Who is commenting? The company that makes the mattress? The competing company? Disgruntled employees? I am just an ordinary consumer that needed to replace his 25 year old box spring mattress. I've owned 3 Sertas and a Beautyrest. This is my first Sealy. The salesman was telling me that several of these companies have bought out each other, so they are all about the same manufacturer now. I am pleased with my choice so far and recommend you go lay on this mattress if you prefer a firm one. This was the most firm of all the foam mattresses I laid on.
I can't believe how much money I spent on this bed! It is the worst purchase I have ever made in my life! I have never had such severe back and hip pain when I wake up in the morning. Do not waste your money on this or Sealy's adjustable (head up only) frame! You can feel the space in the frame when your head is raised through the mattress…terrible!!! I recently spent two weeks away from home sleeping on a cheap mattress and felt so great in comparison to being back home sleeping on my expensive junk!!!
I've had this mattress for 8 months and it has yet to 'break in'. When we went to mattress store, we laid on all of them and ended up with this model. It felt perfect. For some reason, the one we got is like a brick. Both my partner and I are on the lean side, but still.
I bought this mattress on march 15 and the first 4 nights I loved it no back pain and very good support but then I started noticing that although the memory foam always went back to its original form the inner layers of non memory foam on the where getting softer and I no longer had a firm mattress. Im a stomach sleep and this mattress turned onto a nightmare I hated how soft it was and when I was watching tv my bottom would sink in all the way. I no longer have mid back pain like my inner spring but now my neck and shoulders hurt from the rest of me sinking and putting stress on my shoulders. The box spring on this matress is horrible it does not provide any support and the whole motion transfer thing was as advertised for the first week after that i could feel my husband moving. Not as much as an inner spring but not was it was when i first got it well to top it of on the first week of april I called the store where I got it and told them it was sinking and sure enough a tech came and siad it has sunk 3/4 of an inch in less then a month so they gave me the option of getting another one or one for greater or lesser value. I decided to get the tempurpedic contour select it was $1300 more but my parents had bought one a week before I got my sealy and the tempurpedic is still as great as the first day so I didnt wanna risk it with getting anything else. Now im sleeping like a baby and glad I could change it.
reviewed on Dec 05, 2018 Purchased Sealy Posturepaedic from Harvey Norman, Warwick,QLD in March 2016. Within two years of use the mattress has sank in the middle, low enough to make uncomfortable even to just lie down rather sleep and cause body aches. Have rotated the mattress periodically as specified but just not durable even though the warranty is 10 years. The warranty terms and conditions doesnt justify for claims. 30 35mm sag is deemed to be normal in their terms. But given the width of the double mattress not much, that sag is substantial enough to cause issues to the body. They claim to use titanium springs for durability in their mattress. but having used for two years it has to be concluded that it is poorly engineered and the quality of their product is compromised for a rip off.
Put he’s a queen size Sealy from Macy’s in ChicAgo burbs in late 2017. Paid about $1,200 tax and delivery. Started to sag really badly in the middle after 5 or 6 months. I called Macy’s to complain since it’s under warrenty. They sent a technician out to review and look mattress over. The tech measured the depth of the sagg and it was well over 2 inches in the middle. I’m 5’8” and weigh 175. This is a sealy brand but I don’t have a model number. It was on the softer side with a pillow top. My back and hips were sore every morning. Macy’s made good on the warranty and I chose the firmer model as the replacement. Well, 6 months later I’m laying in a huge gully or canyon again. I’m beginning to wonder if these Macy bought models are more low end then high end. Time to call them back and replace number 2.
I will never buy another product from Sealy. I bought a Thermapedic Mattress made by Sealy from Rooms-To-Go. The adjustable base would not raise the mattress within two weeks of purchase. I was directed to Sealy through RTG customer service. The Sealy agent stated that the base needed resetting. She wanted me to go under the bed to get a box to reset the base. When I informed her that I was unable to go under the bed, she told that Sealy does not send repairmen to reset the box. She told me to call her back when I could find someone who could go under the bed. When I informed RTG of her response, a RTG repairman was sent He went under the bed and retrieved the box. He stated that the adjustable base was broken. Resetting the box would not have fixed the problem.
Horrible hard and very thin not even worth what I bought it for
I got the mattress I was highly disappointed. To begin with its a 3 inch mattress. Not happy at all. This was the worse mistake ever. I returned the bed and mattress. Had to take a $125.00 restocking fee and a $50.00 re delivery fee. Plus the only way that I can trade it in was if I bought a new bed so I will take the loss this whole thing leaves a very sour taste in my mouth and I will take the loss the picture above is very misleading. do not buy this product
The mattress is so uncomfortable!! Ughhh! Hate it will not keep
I ordered before the previous review but read said review before my order arrived. So I was not surprised when my order arrived and the mattress was thinner than I originally expected. It looks much thicker in the picture. The box spring is probably double the thickness. With saying that, it is still a good height if not on the ground. The mattress is quite firm but I still go right to sleep as soon as I lay down whereas that was not happening on my old mattress. I would reorder.
I ordered this mattress online. Cheap & cheerful... or so I thought. The mattress was delivered today, its smaller (in thickness) than the box springs. The image on this product is completely misleading. The mattress is probably 2-3 inches thick. Completely disappointing & extra frustrating.
Buying a mattress online is risky. However, if you are not physically able to get out and shop, you may have to do what you have to do. I bought this knowing I wanted a mattress with a plush top. I wanted it to be durable and strong enough to hold but when I laid down on it - it was soft for arthritic patients. I love this mattress. I look forward to going to bed and I don't wake up in pain from laying on a hard mattress.
The matteress is to soft. I should have ordered a firm
Great mattress equals many great nights of sleep! Plus the delivery service was great also.
liked how I got a good deal around presidents day.
I had thought I had ordered a firm mattress but a plush pillow top was delivered. I was gone at the time it was delivered at my house, the old mattress & box springs were gone and the new this set was on the bed. So, it couldn't be returned.
I ordered this bed set on line with out trying it out big mistake. I'm sending it back, its like sleeping on a deflating air mattress. I woke up soar it's just way to soft for me.
I saved a ton of money of my new Queen Sealy mattress and am now sleeping better than I ever did on one I spent double on!
We bought this bed on sale and were not disappointed! This bed is amazing. It is definitely plush and not a firm mattress. The delivery service was outstanding too. They called us often to update us on a time and they were in and out and made sure everything was perfect.
I sleep very good since I purchased this mattress !
I have a bad leg and need surgery from a injury 40 some years ago while in the military and this mattress is a GOD sent for my back as well.
Me and my boyfriend purchased a new bed and we're surprised that after 6 months the quality is horrible the bed is already dented as if the bed was years old. I am very disappointed with the quality of this bed. I will have to do my research more thoroughly next time before I purchase a new bed.
The mattress was as indicated, but I needed the firm pillow top so I returned that mattress and box spring and re-ordered the firm mattress only. It was for my guest room bed that has storage drawers, so when I received both pieces the bed was to high, you need to be 5'6' and up to be able to sit or get in the bed. (:
I love this bed. Very comfortable. I would recommend this Bed to friends and family.
My mattress arrived in the time frame that I was told it would come. It is a great mattress.
This was a perfect purchase. Arrived on time, white glove service, and the most comfortable bed I've ever slept in. Highly recommend!!
I would not recommend this set at all it is extremely too soft. It is so squishy that when I sit on the side of the bed to get out, I feel like I am trying to pick up my butt off the floor. It is not comfortable because there is no support.
I have a tender back and don't wish to sleep on a tender mattress. I found Sealy Essentials Holly Hills Firm Mattress paired with the special box springs saved my tossing and turning to into a great night's sleep. I feel refreshed when I wake up with no back pain or discomfort.
I purchased this mattress for a redecorated "kid's" room/home office. All of my grandchildren are teens now and the daybed no longer accommodated their growing bodies. I love the quality and value of this product. The mattress is firm, but comfortable, and is an extremely good value for the price.