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Deal.ai › EGOHOME › King Mattresses
EGOHOME
EGOHOME Serenity 12” King Mattress

EGOHOME Serenity 12” King Mattress

4.4(755 ratings)

Best price now

$368.00at WalmartChecked 7 h ago

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Price facts

  • Lowest price today: $368.00 at Walmart (checked Nov 10, 2026).

Our take on the EGOHOME Serenity 12” King Mattress

The EGOHOME Serenity is a 12-inch all-foam king mattress with a medium-firm feel. Its layers are 2 inches of gel memory foam, 3 inches of liquid gel flex foam and a 7-inch support base, wrapped in a breathable knit cover. The foam is infused with green tea to fight odors and gel to draw heat away. It is CertiPUR-US and OEKO-TEX certified and fiberglass-free. It suits couples and side or back sleepers who want motion isolation without a springy feel. Against hybrid and innerspring kings it isolates movement better but sleeps warmer and has no edge support. Owners rate it 4.4 out of 5 across 755 ratings.

Best forCouples who want motion isolationBack and side sleepers who like medium-firm foamPet owners wanting a wipeable knit coverShoppers who want a bed-in-a-box king
Pros
  • Medium-firm all-foam build with a 7-inch support base
  • Gel and green tea infusion for cooling and odor control
  • CertiPUR-US and OEKO-TEX certified, fiberglass-free
  • Absorbs movement well for two sleepers
  • Works on platform, slatted, box spring and adjustable bases
Cons
  • All-foam edge support is weaker than a hybrid's
  • Sleeps warmer than spring or hybrid mattresses for some
  • Needs 48 to 72 hours to fully expand
  • Firm feel may be too hard for strict soft-mattress fans

EGOHOME Serenity 12” King Mattress prices at every store

  • WalmartNew

    In stock

    $368.00Free shippingChecked 7 h ago
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Store links may earn us a commission. Price via Klarna.

EGOHOME Serenity 12” King Mattress price history

Lowest price we've seen: $368.00 on Nov 10 at Walmart. Tracked across 1 store since Nov 10.

What reviewers say

  • 4.4 / 5755 ratings

Owners rate the Serenity 4.4 out of 5 and mostly praise its firm-but-cushioned feel and motion isolation. Complaints center on heat and edge support.

What people mention
  • FirmnessMixedSome owners find the medium-firm feel harder than expected, while others call it supportive.
  • Motion transferPraisedCouples report little movement carrying across the mattress.
  • HeatCriticisedSome sleepers say it retains warmth despite the gel layer.
  • Edge supportCriticisedThe foam compresses noticeably when sitting or sleeping near the edge.
  • SetupPraisedBuyers say it unrolls and expands with little effort.

About the EGOHOME Serenity 12” King Mattress

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.

Specifications

bed_size
KingSource
mattress_thickness
12 inSource
color
GraySource
Bed Size
KingSource
Comfort Level
Medium

Questions and answers

How firm is the EGOHOME Serenity?
It is rated medium to medium-firm. Most back and side sleepers find it supportive, but fans of soft mattresses may find it hard.
Does it sleep cool?
The gel foam and breathable knit cover help airflow, but it is still an all-foam bed. Hot sleepers may find it warmer than a hybrid.
How long until it fully expands?
EGOHOME says 48 to 72 hours after unboxing. It is usable sooner but reaches full height within that window.
What base does it need?
It fits platform beds, slatted bases, metal grids, box springs and adjustable bases. A solid or slatted foundation with airflow is best.
Is it good for couples?
Yes. The foam absorbs movement well, and the king size gives each sleeper room. Edge support is the main trade-off.
Does it contain fiberglass?
No. It is made with CertiPUR-US and OEKO-TEX certified materials and a fiberglass-free design.
Where is the EGOHOME Serenity 12” King Mattress cheapest?
At Walmart, for $368.00, as of our latest check.
What do buyers say about the EGOHOME Serenity 12” King Mattress?
Rated 4.4 out of 5 from 755 ratings.

Stores we've priced the EGOHOME Serenity 12” King Mattress at

  • Walmart deals and prices

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Source
Firmness
Medium/HardSource
Filling
Memory FoamSource
Thickness Mattress (")
12.0Source