EGOHOME Serenity, Adult, 12” King Mattress, Medium, Tight Top, Gel Memory Foam Mattress

EGOHOME Serenity, Adult, 12” King Mattress, Medium, Tight Top, Gel Memory Foam Mattress

786 ratings
Bed SizeKing-Out of stock
Mattress Thickness12 in-Out of stock

Key item features

  • Refreshing Comfort: Infused with green tea to combat odors and liquid gel for cooling, this mattress provides an airy, fresh, and soothing sleep experience.
  • Responsive Support: Adapts to body contours, offering pressure-relieving support with balanced stability, suitable for all sleep positions (back, side, stomach).
  • Layered Firmness: Features a 12-inch multi-layer design including 2” memory foam, 3” liquid gel flex foam, and a 7” flex support base for a medium-firm feel.
  • Isolated Motion: All-foam construction effectively absorbs movement, minimizing transfer across the sleep surface to reduce partner disturbances for calmer rest.
  • Hygienic Design: Includes a removable, zippered cover for simple cleaning, and arrives compressed for easy unboxing, expanding fully in 48–72 hours.
  • Certified Materials: Made with CertiPUR-US and OEKO-TEX certified materials, ensuring a fiberglass-free design for a clean sleep environment.
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Specs

Bed size, KingMaterial, Memory FoamMattress thickness, 12 inMattress comfort level, MediumMax load, 550 lbMattress type, Memory Foam Mattresses

About this item

Product details

Cool, clean, and refreshing. The 12” EGOHOME Serenity Gel Memory Foam Mattress combines an odor-fighting green tea infusion with cooling liquid gel for soothing comfort. The green tea infusion is designed to neutralize unwanted odors for a cleaner, fresher sleep experience. The liquid gel layer provides cooling comfort with a breathable construction that promotes airflow through the mattress layers. A soft, breathable knit cover further enhances the cooling mattress with an airy sleep surface. This 12 inch king mattress features a multi-layer design with 2” of memory foam, 3” of liquid gel flex foam, and a 7” flex support foam base for a balanced medium-firm feel. The all-foam construction of this king size memory foam mattress also helps absorb movement and reduce motion transfer, so you and your partner can enjoy more peaceful rest.

Measuring 80”L x 76”W x 12”H, this king memory foam mattress is designed to fit a variety of bed frames and sleep setups, including platform beds, slatted bases, metal grids, box springs, and adjustable bases. Great for couples, households with pets, and those who like extra room to stretch out, this memory foam king mattress gives you the space to rest your way. Made with CertiPUR-US and OEKO-TEX certified materials, this memory foam bed features an environmentally friendly, fiberglass-free design. Conveniently compressed and delivered as a king size mattress in a box, it sets up easily and reaches full expansion within 48–72 hours after unpacking. Backed by a 10-year worry-free warranty, this king bed mattress is designed to bring reliable everyday comfort to your sleep space.

  • Stay Fresh. Sleep Cool: Combining odor-fighting green tea infusion with cooling liquid gel, this memory foam mattress delivers soothing comfort with an airy, refreshing feel
  • Pressure-Relieving Support: The comfort system adapts to your body's natural shape, relieving pressure while maintaining balanced support throughout the night
  • Medium-Firm: The multi-layer design combines 2” of memory foam, 3” of liquid gel flex foam, and a 7” flex support foam base to create a medium-firm feel with the right balance of cushioning and stability
  • Sleep Your Way: This king foam mattress is designed for every sleep position, offering an adaptive feel whether you rest on your back, side, or stomach
  • Motion Isolation: Designed to keep movement from traveling across the sleep surface, this king size foam mattress helps reduce disruptions from partner motion for a calmer, more restful night
  • Removable Cover: A zippered design makes the cover easy to remove for simple cleaning and care when needed
  • Easy Setup: This king mattress in a box arrives compressed for easy handling and setup. Simply unbox, unroll, and allow 48–72 hours for full expansion
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Specifications

Bed size

King

Material

Memory Foam

Mattress thickness

12 in

Mattress comfort level

Medium

Warranty

Warranty information

Worry-free 10-year limited warranty

Customer ratings & reviews

4.4 out of 5 stars
stars
786 ratings188 reviews
Includes global ratings and reviews
How item rating is calculated

Reviews summary

Pros

  • : Provides quality at a lower cost.
  • : Provides a comfortable feel without sacrificing support.
  • : The dense foam contours to relieve pressure points.
  • : The mattress reaches full support within two days and offers slight give.
  • : Provides comfortable support for restful sleep.

Neutral

  • : Product meets specs but some units arrive oversized or incorrect.
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Showing 1-3 of 188 reviews

Nov 5, 2026
Reviewer name: Travis
Top Reviewer
Walmart Associate
Item details
Bed size: King
Mattress thickness: 14 in
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Mattress is medium-firm. It expanded quickly, but we didn't sleep on it for 24 hours. It is more firm than I thought it would be, but it is extremely comfortable. This is actually the second time I have purchased this same mattress. I bought one a few years back for a guest room and it has held up very well. Overall, I am very pleased with everything about it. I have back issues but it hasn't bothered me since I have been sleeping on it. I am so glad I got it!

Helpful?7BHFBO269WCX17123522170
Oct 20, 2026
Reviewer name: Danyalle
Item details
Bed size: Full
Mattress thickness: 10 in
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

this bed was very comfortable my children love it, very medium to firm, and I actually sat on it myself. They sleep like babies.😁

Helpful?7BHFBO269WCX17123522170
Aug 26, 2026
Reviewer name: nadiene
Item details
Bed size: Twin
Mattress thickness: 10 in
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Recommend it

I got a twin size. It looks exactly like the photo. It was very easy to put together, surprisingly. It didn't feel super sturdy but sturdy enough. The weight limit is pretty low so not made for multiple adults to lay or sit on the bed at the same time anyway. It is a great product especially for the price and it exceeded my expectations. I would definitely recommend.

Helpful?7BHFBO269WCX17123522170
Current price is $368.00
Price when purchased online
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