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Sleep Advisor
sleepadvisor.org › home › best mattress
Best Costco Mattress (2026)
February 11, 2025 - On Costco’s website, the Sleep Science 14″ mattress has 4.3 out of 5 stars for its overall rating. Customer reviews are mostly positive, with some people saying that even though it’s a firm bed, it’s still comfortable for them.
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Sleepopolis
sleepopolis.com › home › 10 best mattresses of 2026: over 500 tested by sleep experts › best costco mattresses (2026): a whole lot of quality at wholesale prices
Best Costco Mattresses (2026) - Tested by Experts
1 week ago - Customers of all sleeping positions gave this mattress five-star reviews, saying it gave them an ideal level of comfort and support. Many customers cite that they experienced minimal off-gassing when they unboxed their new mattress.
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Bogleheads.org
bogleheads.org › board index › community › personal consumer issues
Costco Sleep Science Foam Mattress Reviews - Bogleheads.org
Coil on coil with a padded/quilted comforter. Guaranteed for 15 years. No breakdown or sagging. It was ~$1,200 for a queen with the box spring custom built for the mattress. The one mattress I would consider is the Sleeping Organic layered mattress with 3 or 4 layers of 100% latex.
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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 - While it’s supportive enough for all sleeping positions, this type of feel is a more polarizing one. In our performance tests, this mattress earned an overall score of 9.18, ranking the mattress in the top 10% of all mattresses tested to date.
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Slumber Search
slumbersearch.com › sleep-science-mattress-reviews
Sleep Science Mattress Reviews
We have the queen, and now want a Cali king (we now have a dog sleeping with us), and will be buying another one of these latex matresses from Costco. This one will go into the guest room, and it looks brand new. It has not settled or sagged at all, even though it is used every night, by 2 people. It is NOT hot, either. The memory foam mattress ...
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Mattress Clarity
mattressclarity.com › home › best mattress
Best Costco Mattresses (2026) - Mattress Clarity
The medium-firm feel and contouring gel layer combine to create excellent lumbar support, making this a good mattress for back sleepers in particular. This mattress is very affordable, costing just over $600 for a queen. Costco also offers free white glove delivery for the Beautyrest Silver, and removal of your old mattress is also included.
Published   2 weeks ago
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Costco
costco.com › home › mattresses › california king size mattresses
Sleep Science 14" Copper Infused Firm Memory Foam Mattress with Adjustable Q-Plus Base | Costco
Sleep Science 14" Copper Infused Firm Memory Foam Mattress with Adjustable Q-Plus Base
Sleep Science 14" Copper Infused Firm Memory Foam Mattress with Adjustable Q-Plus Base, Luxurious Firm Comfort with Copper Infused Memory Foam, Stay cool with Copper-Gel Cooling Foam and Air Grid Base, Feature-Rich Adjustable Base with Independent Pillow-tilt, Zero Clearance Frame Compatible with Platform & Storage Beds, Bed Frame Shown not Included
(4.3)
Price   $1.00
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NapLab
naplab.com › home › mattress reviews › sleep science copper memory foam review
Sleep Science Copper Memory Foam Review - Data-Driven Tests - NapLab
Sleep Science Copper Memory Foam Review
We test the Sleep Science Copper vs. our 10 objective & data-driven tests. Is this mattress a good fit for you? Let's find out now. 7.40 Overall Score Tested With Scoring System 1.3 6.0 Cooling 6.4 Motion Transfer 9.6 Response Time 7.4 Edge Support 7.3 Sex 7.0 Pressure Relief 8.9 Off-Gassing 9.6 Company Learn how we test & score here. Best For Queen mattress under $700 14" thick at a budget price Fast material response time Faster than average off-gassing duration Considerations Cooling performance struggles, moderate levels
Rating: 3.7 ​
Find elsewhere
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Costco
costco.com › home › mattresses › adjustable beds
Sleep Science 12" iFlip Sonoma Memory Foam Mattress with Adjustable ...
Sleep Science 12" iFlip Sonoma Memory Foam Mattress with Adjustable Power Base, Queen, 5-layer 2-sided Mattress offers dual comfort levels: Medium Soft and Medium Firm, Enhanced Airflow system created by the Opti-Air Memory Foam and Air Channel Base, Adjustable base including isolated power Pillow-Tilt function, Versatile Zero Clearance frame works on all beds, including platform and storage beds, Easy to use backlit remote controls the 16-function adjustable base, Pairs to mobile devices with Bluetooth remote control app, Bed frame pictured is not included
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Costco
costco.com › home › mattresses
Sleep Science Mattresses | Costco
Costco also has gel memory foam mattress, which have an added cooling effect. For truly personalized comfort, we have adjustable mattresses. This luxurious choice offers customizable support, and can adapt to almost any sleeping, sitting, or reclining position.
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Reddit
reddit.com › r/mattress › any suggestions on what costco mattress to pick? nova foam, sleep science, beauty rest?
r/Mattress on Reddit: Any suggestions on what Costco mattress to pick? Nova foam, sleep science, beauty rest?
April 1, 2023 -

I have chronic lower back pain waking up on a firm Sealy Posturepedic mattress. I also tried a casper once upon a time that didn’t work. It really turned me off to foam mattresses at the time. I think I need a medium firm mattress.

Anyway, I need a change. I have tried toppers, and various other beds.

There are a few on sale at Costco:

Beautyrest 14.5" Silver Hybrid DualCool Plush Mattress

Sleep Science 14" Copper Infused Firm Memory Foam Mattress (firm)

Novaform 14" Serafina Pearl Gel Memory Foam Mattress (plush, medium, and firm)

Also not on sale but there is sterns and foster medium mattress available.

Anyone try these models or brands before?

Thanks!!!!

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Reddit
reddit.com › r/frugal › costco has queen mattress deal for $400. i just bought a mattress early last year, but is nowhere as comfortable as this one. what do i do?
r/Frugal on Reddit: Costco has queen mattress deal for $400. I just bought a mattress early last year, but is nowhere as comfortable as this one. What do I do?
November 4, 2025 -

We bought the current bed last year when we moved in together. It was $250 on Amazon, and we intended to use it forever. It's a foam mattress and isn't bad. A little on the stiffer side. We went into Costco the other day and saw they had a deal on a queen mattress for $400. It's half spring half foam as advertised. We sat on it and it felt pretty nice. Way nicer than our current bed imo. The only thing stopping me from buying this mattress, is the fact that we JUST bought our current mattress last year. I know we spend 1/3 of our lives in bed so having a comfy bed and comfy sleep is important to me. Again our current bed isn't too bad, but I think I just taught myself to accept it. This Costco bed feels like my ideal bed that I originally wanted (we blindly bought our mattress from Amazon without knowing how it actually felt before we purchased it. Decided to keep it because we didn't know how to return a mattress via Amazon lol). Is it justifiable to get this new bed?

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Costco
costco.com › home › 404 - product not found
Sleep Science 13" Bamboo Cool Firm Mattress | Costco
Sleep Science · California King Mattress - Weight · 107 lb. California King Mattress Dimensions: W x L x H · 72 in. x 84 in. x 13 in. Delivery Time Frame · 5-7 Days · Delivery Type · UPS/Fed Ex · Firmness · Firm · King Mattress - Weight · 108 lb. King Mattress Dimensions: W x L x H · 76 in. x 80 in. x 13 in. Mattress Composition · Memory Foam · Mattress Thickness · 13 Inch · Mattress Type · Mattress Only · Queen Mattress - Weight ·
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Costco
costco.com › home › 404 - product not found
Sleep Science 14" Copper Infused Firm Memory Foam Mattress | Costco
Sleep Science 14" Copper Infused Firm Memory Foam Mattress Luxurious Firm Comfort with Copper Infused Memory Foam Stay Cool with Copper-Gel Cooling Foam and Air Grid Base Articulating Cuts for Adjustable Beds Patented Wedge Support System for Extra Sleeping Surface Mattress Only - Bed Frame not Included
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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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Sleep Mattress HQ
sleepmattresshq.com › sleep mattress hq › best mattress › best costco mattresses worth buying in 2026 (january)
Best Costco Mattresses Worth Buying in 2026 (January)
November 1, 2025 - The major con can be the price as it will cost you more than $700 for a queen-size mattress. There are equally capable options available online at a much lesser price range. Sleep Science is another popular choice for mattress buyers at Costco.
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Reddit
reddit.com › r/mattress › costco adjustable bed frame (q-series sleep science)
r/Mattress on Reddit: Costco Adjustable Bed Frame (Q-series Sleep Science)
October 17, 2022 -

I'm interested in an adjustable bed frame with the main priorities being warranty, customer service, and ease of installation. Costco has an adjustable bed frame that is about half price as competitors but besides the costco website reviews (which are highly positive and do not seem fake) i cant find much out there. I dont think those snazzy ratings review websites are given free merchandise or affiliate comissions by costco so they probably just dont bother.

Pros:

-cheap ($800 for King)

-10 year warranty

-With costco you can return anything for any reason reason at all, and usually reach a human by phone fairly easily

Cons:

-Simple feature set

-King is actually a split king that is joined together

Can anyone comment if having a split king that is joined together is bad somehow? It has a bar/cable system that connects the two sides. Or all they all like this under the hood? My mattress is not a split.

https://www.costco.com/sleep-science-q-series-adjustable-base.product.100393352.html

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Whatsthebest-mattress
whatsthebest-mattress.com › forum › sleep-science-ara-foam-mattress-costco › 4406-A-1.html
What's the Best Mattress | Sleep Science Ara Foam Mattress at Costco
Re: Sleep Science Ara Foam Mattress at Costco · Reply #33 Apr 6, 2011 9:47 AM · Quote · Post Reply · View as Outline · Motorcycle tests and reviews - JamesBaw · Jan 16, 2026 8:30 PM · casino cash games online x442ld - ArielLella · Jan 10, 2026 3:18 AM ·
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Costco
costco.com › home › mattresses › queen size mattresses
Queen Size Mattresses | Costco
A cozier option than the Cal king- or king-sized mattresses, the queen mattress offers just the right amount of room for a deep and restful night’s sleep. This comfy size is a smart choice for an apartment, guest room or smaller bedroom. Browse Costco’s affordable selection of premium queen mattresses, and choose from luxurious memory foam, cooling latex, ultra-soft pillow top, or extra-firm support.