LIFEMENT King Mattress, 10 Inch King Size Mattress, Essential Graphite Cooling Memory Foam Mattress in a Box, Pressure Relief with Medium Firm Support, CertiPUR-US Certified, 80''L x 76''W
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Availability:
In Stock.
Arrives
Friday, Jul 24
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Size: King (U.S. Standard)
Set name: Cooling 10 inch
Features
- FIBERGLASS-FREE SAFETY BUILD - This king mattress is made without fiberglass for a cleaner home environment. The soft cover on this mattress king size model provides added comfort and peace of mind.
- 3-LAYER FULL BODY SUPPORT - This king mattress features durable base foam, motion-reducing transition foam, and pressure-relieving memory foam. A supportive king size memory foam mattress for every sleep style.
- CERTIFIED MATERIALS YOU CAN TRUST - This king mattress includes CertiPUR-US certified foams and OEKO-TEX certified fabric. Each mattress king size model is tested for quality and durability.
- KING MATTRESS IN A BOX - This king mattress ships compressed for convenient delivery and setup. Simply unbox your king size memory foam mattress and allow time to expand.
- 10-YEAR WARRANTY COVERAGE - Ideal for master bedrooms and spacious sleep setups, this king mattress includes dependable long-term protection. A durable mattress king size option made to last.
Brand: LIFEMENT
Size: King (U.S. Standard)
Product Dimensions: 80"L x 76"W x 10"Th
Item Weight: 80.91 Pounds
Item Firmness Description: Medium Firm
Top Style: Plush Top
Cover Material: Polyester Blend
Number of Layers: 3.0
Fill Material: Cotton, Gel Memory Foam, High Density Foam
Special Feature: Breathable, Low Motion Transfer, Pressure Relief, Removable Cover, Temperature Regulating
Item Firmness Description: Medium Firm
Number of Layers: 3.0
Additional Features: Breathable, Low Motion Transfer, Pressure Relief, Removable Cover, Temperature Regulating
Construction Type: Memory Foam
Is Customizable?: No
Size: King (U.S. Standard)
Item Dimensions L x W x Thickness: 80"L x 76"W x 10"Th
Item Weight: 80.91 Pounds
Item Thickness: 10 Inches
Item Dimensions: 80 x 76 x 10 inches
Item Depth: 10 inches
Cover Material: Polyester Blend
Fill Material: Cotton, Gel Memory Foam, High Density Foam
Product Care Instructions: Hand Wash Only
Mattress Comfort Layer Material: Gel Memory Foam, Memory foam
Material Type: Bamboo
Brand Name: LIFEMENT
Model Name: LIFEMENT Essential Memory Foam Mattress King
Product Benefits: Back Pain Relief, Improves Sleep, Posture Support, Reduces Toss & Turn, Stress Relief
Model Number: King Mattress Memory Foam LIFEMENT
UPC: 810164540164
Manufacturer: Beyond LIfestyle, Inc.
Set Name: Cooling 10 inch
Manufacturer Part Number: Mattress King
Included Components: Memory Foam, Bamboo Outer Cover, Flame Retardant Innver Cover
Age Range Description: Adult
top-style: Plush Top
Color: Graphite Cooling
Style Name: 10 Inch Graphite
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Jul 24
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Size: King (U.S. Standard)
Set name: Gel 12 inch
I couldn’t be happier with this mattress—it completely exceeded my expectations! The copper-infused cooling gel memory foam really does make a difference, keeping me cool and comfortable all night without that overheated feeling I’ve had with other memory foam mattresses. The medium-firm support is just right: soft enough to contour to my body and relieve pressure, yet firm enough to support my back whether I sleep on my side or back. I also appreciate the thoughtful 3-layer design, which feels both plush and supportive, and it works perfectly with my bed frame. Knowing it’s made with CertiPUR-US certified foam and an OEKO-TEX certified cover gives me peace of mind about safety and quality. Overall, this mattress delivers incredible comfort, support, and value—I’ve been sleeping better than ever and would highly recommend it!
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Reviewed in the United States on April 30, 2026 Reviewed in the United States on April 30, 2026 by David S
Size: King (U.S. Standard)
Set name: Gel 12 inch
We recently purchased the Essential 12-Inch Copper Infused Cooling Gel Memory Foam Mattress, and it has exceeded our expectations! The mattress offers the perfect balance of comfort and support—medium firm without feeling too hard. It provides excellent pressure relief, and I wake up feeling much more refreshed with less stiffness! Setup was simple, the mattress expanded quickly, and there was very little odor. Overall, this is an amazing value for the price and has significantly improved our sleep quality. Highly recommend!
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Reviewed in the United States on June 6, 2026 by Angie Lee
Size: Twin (U.S. Standard)
Set name: Gel 12 inch
I’m extremely happy with this twin mattress—it delivers exactly the comfort and support I was hoping for. From the very first night, I noticed how well it balances medium-firm support with a soft, pressure-relieving feel. It contours nicely to my body without sinking too much, which makes a big difference for both back and side sleeping. One of the standout features is the cooling gel. I tend to sleep warm, but this mattress genuinely helps regulate temperature throughout the night. It stays cool and breathable, so I don’t wake up feeling overheated. The bamboo-infused cover is another great touch—it feels soft, fresh, and adds to the overall cooling effect. It also gives the mattress a clean, premium feel. The motion isolation is excellent as well. Even on a twin size, it minimizes movement really well, so there’s no disturbance when shifting positions. The pressure relief is noticeable too—my shoulders and hips feel much more supported, and I wake up with less stiffness. Setup was quick and easy. It expanded nicely after unboxing, and there was minimal odor that disappeared within a short time. The quality feels solid and durable, especially for the price point. Overall, this mattress checks all the boxes: comfortable, supportive, cooling, and well-made. If you’re looking for a twin mattress with cooling gel and bamboo features that actually make a difference, this is a fantastic choice. Highly recommend for anyone who values a cool, restful night’s sleep.
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Reviewed in the United States on May 4, 2026 Reviewed in the United States on May 4, 2026 by hun young Song
Size: King (U.S. Standard)
Set name: Gel 8 inch
It’s comfy and not firm at all. I have to say that we already had half the mattress for this topper, which is shown in the picture under this 8 inch mattress topper. It’s definitely not 8 inches. We let it sit out for around 24 hrs and it raised to around 6 inches. That seems to be what most others have confirmed after buying as well. So to sum this up: DO NOT buy this as a mattress. This is definitely more of a mattress topper. But as a topper it is comfy and I do like it better than our previous 4 inch foam topper we had before this. It’s softer and less firm than what we had before. For the price it is well worth it for a mattress topper!!
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Reviewed in the United States on November 11, 2025 Reviewed in the United States on November 11, 2025 by abby
Size: Queen (U.S. Standard)
Set name: Gel 12 inch
Absolutely love this mattress! I was honestly surprised by how comfortable it is for the price. It has the perfect balance of softness and support — soft enough to feel cozy, but still supportive enough that my back doesn’t hurt when I wake up. The mattress expanded quickly after opening and didn’t have a strong smell like some memory foam mattresses do. I’ve been sleeping so much better since switching to this one. It also feels very sturdy and doesn’t sink too much even with two people sleeping on it. Overall, great quality, comfortable, and worth every penny. Definitely recommend if you’re looking for a supportive memory foam mattress without spending a fortune!
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Reviewed in the United States on May 18, 2026 Reviewed in the United States on May 18, 2026 by Yoon Seo O
Size: King (U.S. Standard)
Set name: Gel 12 inch
UPDATE 2: This seller processed a refund immediately after I updated my review detailing their refund runaround with screenshot of their messages. Coincidentally, my review was then reported and removed. So I am resubmitting it again because customers need to know that this behavior is happening, its unacceptable, and it should be weighed against the tons of "good" reviews for this mattress, which I am not convinced are genuine. If the review is removed again, I'll submit my own report for an investigation into the current reviews that all sound exactly the same and may not be genuine, which is a violation of Amazon seller policy. UPDATE: This seller sent me a message offering me a full refund for the horrible experience I've had with this mattress. When I agreed, they then say they couldn't do a refund but that they would offer me a replacement. I said no and explained that I am aware of how the Seller backend works. They said they would have to reach out to Amazon support to see if there was an alternative method for remitting a refund and would "get back to me." This was 21 days ago, and I haven't heard a word from them. I am an e-commerce director and have come across the refund bait and switch before, offering a refund and then changing it to a replacement so they don't have to give you the money back because in the end, the mattress costs less than what the sale price is. They lose less money vs the refund and still keep the customer quiet. Now, whether what this seller is saying is true or not, I can't say. They sent a PNG that could have been a screenshot of something but it wasn't openable on our end. So who knows. I can only go by what I know from experience. What I can say is that it is possible to remit a refund well past 30 days. END of Update. Had this mattress for 9 months. It sinks terribly after 10 minutes of laying on it. The sinkhole is so bad, I'm completely arched. I have back pain galore. My posture has been ruined. My neck and shoulders always look like I'm some kind of goblin. And I feel like one when I crawl out of this bed. You have to crawl out of the hole. When you get up, you can see the massive sinkhole. There is no support whatsoever. I allowed more than the 72 hour wait period before using it. I allowed it to expand for 5 days. After 3 days, the corners still hadn't expanded. But I was able to get them to expand. The memory foam has no support. It is a true king size and fit my bed correctly. But the quality is horrible, and I'm starting to think most of these reviews are not genuine or authentic. I do not recommend this bed to humans or any vertebrates in the world. Your spine will do unnatural bends and curves while laying on this. I do not know what I did in life to deserve such a bad bed.
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Reviewed in the United States on March 2, 2026 by Cat K's Home & Beauty
Size: Full (U.S. Standard)
Set name: Gel 12 inch
Honestly, getting this new mattress was such a clutch move for my apartment. Setting it up was super easy since it comes shoved in a box (though it’s kind of heavy, so definitely grab a roommate to help carry it up the stairs), and it didn’t have that weird, gross factory smell right out of the plastic like a lot of cheap foam beds do. It's honestly the perfect middle ground—super comfy when you faceplant into it after pulling an all-nighter, but it doesn't totally swallow you whole, so your back actually gets some solid support. It also stays nice and chill all night, which is a lifesaver because nobody wants to wake up sweating in a stuffy bedroom, and the bed is so steady that it barely even shakes if someone else is tossing and turning. If you're looking for a thick, massive upgrade from a trash dorm bed without totally draining your bank account, this one is 100% the move.
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Reviewed in the United States on June 18, 2026 Reviewed in the United States on June 18, 2026 by Amazon Customer
Size: King (U.S. Standard)
Set name: Gel 12 inch
I have purchased a king-size gel frame from Lifement. This memory foam keeps it cool throughout the night and helps with good sleep. The thickness feels supportive and solid, and it expanded to full size quickly after unboxing. This mattress is very good for neck and back support.
Reviewed in the United States on June 22, 2026 Reviewed in the United States on June 22, 2026 by Z H