Mattress Underground has a great buying guide. It's one of the very rare reliable sources of mattress information. Most review sites are owned by mattress brands. Answer from snorkelvretervreter on reddit.com
Costco
costco.com › opt › mattresses-for-side-sleepers
Mattresses For Side Sleepers | Costco
Find the best mattresses for side sleepers at Costco. Enjoy comfort, support, and great sleep with top-rated mattress brands.
Mattress Clarity
mattressclarity.com › home › best mattress
Best Costco Mattresses (2025) - Mattress Clarity
However, lightweight side sleepers and fans of memory foam should look elsewhere. Learn more in our video review. If you aren’t a Costco member, the Saatva Classic is a good alternative to the Kirkland Signature.
Published January 19, 2023
Videos
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Best Costco Mattress - 17 Mattresses Objectively Tested - YouTube
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Best Costco Mattresses - Our Top 4 Costco Bed Picks(w/Alternatives) ...
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Best Costco Mattresses: Our Top 3 Costco Bed Picks (w/Alternatives) ...
08:59
Best Costco Mattresses 2025 - Which Should You Choose? - YouTube
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Best Costco Mattresses - Our Top Picks For 2024! - YouTube
What is the best mattress at Costco?
When it comes to value, the Cocoon by Sealy delivers the highest rating for the money. If budget isn't a concern, Tempur-Pedic offers highly rated memory foam mattresses. However, both of these options may pay to buy direct from the brand for added discounts and perks.
slumbersearch.com
slumbersearch.com › costco-mattress-reviews
Costco Mattress Reviews: Guide To The Best Brands (2025)
Are Costco mattresses any good?
Costco sells a wide array of mattresses and some of the options like the Cocoon By Sealy offer a lot of value and comfort. However, some customers report issues with durability, delivery, and returns, which may be alleviated buying direct from the brand.
slumbersearch.com
slumbersearch.com › costco-mattress-reviews
Costco Mattress Reviews: Guide To The Best Brands (2025)
Is the Costco Casper mattress good?
The Costco Casper mattress is based on their original mattress design, which is no longer sold directly by Casper. Its benefit is its affordable price for the brand name. While many find it suitable, there are some complaints of off gassing, firmness, and durability in some cases.
slumbersearch.com
slumbersearch.com › costco-mattress-reviews
Costco Mattress Reviews: Guide To The Best Brands (2025)
Sleepopolis
sleepopolis.com › home › 10 best mattresses of 2025: over 500 tested by sleep experts › best costco mattresses (2025): a whole lot of quality at wholesale prices
Best Costco Mattresses (2025) - Tested by Experts
December 20, 2023 - Edge support is less than I had on my previous non-box mattress, but it hasn’t bothered me yet. “ ... The Leesa Legend is built with luxurious materials like merino wool and organic cotton at a Costco price.
NapLab
naplab.com › home › best mattress 2026 – 380+ beds tested & reviewed by our experts › best costco mattress: we test 17 costco mattresses
Best Costco Mattress - 17 Mattresses Objectively Tested
June 27, 2025 - The Kirkland Signature Lakeridge has an overall performance score of 8.08, ranking the mattress among the bottom 18% of all mattresses tested to date. This isn’t the level of performance we’re looking for in a “Best For” pick, but for ...
Slumber Search
slumbersearch.com › costco-mattress-reviews
Costco Mattress Reviews: Guide To The Best Brands (2025)
I'm a side sleeper and do not wake up with back pain. Very happy with this mattress. A great feature is my wife does not feel me toss and turn / or get in and out. She is a light sleeper and slight movements wake her. On another note, COSTCO and Innocor are great to work with.
Costco
costco.com › home › mattresses
Mattresses | Costco
If you’d like something a little ... comfort and support. Considered the best mattress for side sleepers and people with back pain, a memory foam mattress or mattress in a box is a popular choice....
Reddit
reddit.com › r/mattress › best mattress at costco?
r/Mattress on Reddit: Best mattress at Costco?
November 15, 2024 -
Been mattress shopping for a few weeks now and its brutal. One person gives a mattress 5 stars, best sleep ever, and the next person says its garbage and the worst mattress they've ever tried.
So rather than risk it with a super-expensive mattress, I'm going to go the Costco route. Looks like there are a lot of options from Leesa to Casper to Simply Modern to whatever else.
Out of all the options at costco, I'm wondering what the best choice is? Let's say $1600 or less...
I'm leaning toward the Leesa Legend Hybrid or Casper. Would loooove some help here! I'm so nervous about making the wrong call!
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Mattress Underground has a great buying guide. It's one of the very rare reliable sources of mattress information. Most review sites are owned by mattress brands.
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Last year we bought a Stearns Foster from Costco...we hated it, it was way too stiff for us. Sent it back after 6 weeks and got a different one...I don't remember which one...at first it was great but within 3 months it was way too soft. Sent that one back and got Costco's tempur pedic. That was 9 months ago and we still love it. Best sleep ever. Costco's return service was perfect.... same crew each time. They picked up and dropped off same day...let me take pictures for proof of pick up. It couldn't have been easier. I'm not saying you should get the same mattress we did, I'm saying if you get one you don't like the return process is easy.
Sleep Advisor
sleepadvisor.org › home › best mattress
Best Costco Mattress (2025)
February 11, 2025 - Softer mattresses are often the best for side sleepers, while back sleepers usually benefit from medium firmness the most. Stomach sleepers typically need firmer beds to keep the hips elevated. If you found a Costco model you like but feel it’s lacking a little something, it might be that it doesn’t fit your sleeping position well.
Reddit
reddit.com › r/mattress › best costco mattresses?
r/Mattress on Reddit: Best Costco mattresses?
January 4, 2024 -
Looking for people to post positive experiences they’ve had with Costco mattresses. What was your process? What kind of sleeper? What did you settle on?
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I’ve been cycling through quite a few mattresses from Costco. I’m 5’8” 160 pounds with back/neck pain and insomnia worsened by Lyme disease. I sleep on my back. My wife is 5’6” 130 pounds and a side sleeper. She can sleep anywhere. I’ve been having quite a bit of trouble with my sleep. For all of the beds, I broke them in over the first few weeks and rotated them regularly. The mt auburn was too firm for me and generally didn’t feel all that great. It was a decent mattress overall but wasn’t it for me. Like most mattresses without a softer pressure relieving layer, it caused hip stiffness and pain. Sealy posturepedic ridge crest was a step up. The euro top added a decent layer of comfort, but the bed started hammocking within a few months and became uncomfortable to me as I really like an even surface. My wife liked this bed though. We briefly tried the 12” sleep science Sonoma flippable mattress but I couldn’t last more than an hour on it. It felt cheap and unsupportive. The novaform serafina is a decent feeling but firm mattress that I occasionally sleep on at my parents house. Well constructed but I find it to not have enough pressure relief (though maybe it’s not well broken in). The Sleep science 13” Napa is my favorite of them all, but it only comes in a split king and I already have an adjustable base. The memory foam comfort layer is thin but relieves pressure, and the latex layer under that does a great job of easing you into the denser foam beneath. I’ve only slept on it once and it felt great, but when I demo it or lay on it, it feels amazing. Kirkland Stearns and Foster. I had this for the longest, about a year. I wanted to keep this mattress forever but there were a few flaws that ended up disrupting my sleep. The quality of construction and materials feels great. While it came firm, it broke in nicely and was a premium feeling mattress. I ended up adding a 1.5” inch cooling memory foam topper to add just a bit of pressure relief and it felt perfect for a while. After about 9 months, the body indents were starting to make my shoulders shrug upward. The kings ridge pressed on my side as well. And the edge support is too wide, as those springs wear differently than the main support coils. All of these things together caused the usable sleep area to be quite small on the king mattress and it stopped being supportive/comfortable to me. If this stayed how it felt I’d have kept it. Tempur pedic flex prima hybrid. This is the bed I’m currently on, it’s been about 2 weeks, so I don’t have a full review of it, but it’s been decent. I like how uniform the surface feels. It’s quite firm right now, but I’m expecting it to break in a little bit. If it’s a 7.5 firm right now, I think the bed will be great at a 6 or 6.5. It provides great support, but just a bit more pressure relief would go a long way. I might try a 2 inch Tempur pedic topper on it to see if it gives it that softness without losing too much underlying support. Overall, I do think many people (my wife being one of them) would have been happy with many or most of the mattresses I’ve tried. Costco’s return policy is keeping me sane while trying to figure out how to deal with my aches and pains. I’m realizing I should probably turn this into a post haha
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Novaform comfort grande 14" is pretty legit for the price. Had over a year and no complaints.
Costco
costco.com › home › mattress buying guide
Mattress Buying Guide | Costco
There are many types of mattresses that a back sleeper might enjoy, but most find that medium-firm foam mattresses and some medium-firm hybrid mattresses, are the most comfortable. Many side sleepers enjoy a mattress that has soft to medium-soft firmness, with an equal balance of support and body contouring.
NYTimes
nytimes.com › sleep › mattresses › the best mattresses for side sleepers
The 5 Best Mattresses for Side Sleepers of 2026 | Reviews by Wirecutter
November 25, 2025 - Testers loved its cuddly yet supportive feel, though some found it to be too firm. ... Who it’s for: The Novaform ComfortGrande is a memory foam mattress that is best for side sleepers ...
Reddit
reddit.com › r/costco › mattress for side sleeper?
r/Costco on Reddit: Mattress for side sleeper?
December 23, 2024 -
I’m looking for a mattress but I can’t test any of them at my Costco. When my wife moved in we used her foam one and I hate it, my shoulders and lower back hurt every night.
My old one which I loved was a firm mattress with a built in foam top. It was firm enough to support me (6’ 250 lbs), but soft enough with the top that I could sleep on my side.
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Pro tip. Costco really isn’t the best place to get a mattress unless it’s for a guest room
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My weird mattress advice - no Costco related. If you go to a hotel and like the bed, just purchase it from their website. It’s a good “try it before you buy it” way. Yeah there’s probably a bit of a price premium, but at least you know you’re buying what you like.
Yawnder
yawnder.com › guides › costco mattresses: must-have choices that impress
Best Costco Mattresses - 4 Worth Buying
August 3, 2025 - Find the best Costco mattress for your needs: Kirkland Signature Lakeridge for overall comfort, Beautyrest Salina for luxury, Sealy Posturepedic Plus for back sleepers, Sealy Posturepedic Carver for side sleepers, Tempur-Pedic Supreme for memory ...
NYTimes
nytimes.com › sleep › mattresses › the best mattresses for 2026
The 25 Best Mattresses of 2026 | Reviews by Wirecutter
November 25, 2025 - The all-foam Loom & Leaf (Relaxed Firm) has a cradling, not-too-sinky feel, and the Leesa Sapira Hybrid is slightly firmer and more resilient. Our guide to the best mattresses for side-sleepers has more recommendations.
Facebook
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Best Costco mattress?? Back and side sleepers.
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Reddit
reddit.com › r/costco › looking to buy king size mattress at costco. side sleeper/back, back pain issues, no coils. any suggestions?
r/Costco on Reddit: Looking to buy king size mattress at Costco. Side sleeper/back, back pain issues, no coils. Any suggestions?
May 14, 2025 -
I’m looking to buy King size mattress at Costco after years and man they’re so many different brands now! Details are in the title. Cooling feature might be good to have! It would be for me & my senior pup (I will add waterproof cover). I don’t have a specific budget because I see so many of them at different price point.
Thank you!
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Don't buy a foam bed in a box. They crater way fast. Also, stay away from pillow tops for the same reason.
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I’ve got the 14” Novaform comfort grand and the 3” serenity tempur-pedic topper. I’m also a side sleeper w back issues and put a waterproof cover on, 3 dogs…. It’s been nice and I’d do it again. No dips or dents after a few years now.
Costco
costco.com › home › mattresses
Firm Mattresses | Costco
If you’d like something a little ... comfort and support. Considered the best mattress for side sleepers and people with back pain, a memory foam mattress or mattress in a box is a popular choice....
Costco
costco.com › mattresses.html
Hybrid Mattresses | Costco
Considered the best mattress for side sleepers and people with back pain, a memory foam mattress or mattress in a box is a popular choice. It molds to your contours, offering superior pressure point relief.
Costco
costco.com › home › mattresses
Kirkland Signature Mattresses | Costco
If you’d like something a little ... comfort and support. Considered the best mattress for side sleepers and people with back pain, a memory foam mattress or mattress in a box is a popular choice....
Costco
costco.com › home › mattresses
Plush Mattresses | Costco
Considered the best mattress for side sleepers and people with back pain, a memory foam mattress or mattress in a box is a popular choice. It molds to your contours, offering superior pressure point relief.