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King Memory Foam Mattresses

All mattresses

16 king memory foam mattresses from Novilla, Nectar, Sweetnight and more. Most cost $270 to $506, and half cost less than $410.

King mattresses whose title says memory foam: foam throughout, no coils.

We do not pick by hand: a mattress is here because its listed specs pass the checks.

Top brands: Novilla (4)

Novilla

King, Memory Foam, 13 in and up

+CertiPUR-certified memory foam
+Ships boxed for easy home delivery
+Cooling design with gel memory foam
−Heavier than thinner king mattresses
$365.48-21%List: $459.99
as of 11/04/2026 00:28 PST - Details
Serta

King, Memory Foam, Firm, 11 to 12 in

+CertiPUR-US certified foam for a material standard
+Ships boxed for easier delivery to a home
+King size for couples or extra sleeping room
$506.88-5%Was: $535.49
as of 11/04/2026 02:37 PST - Details
Mlily

King, Memory Foam, Medium Firm, 11 to 12 in

+Full 12 inch thickness for deep support
+CertiPUR-US certified memory foam
+Copper gel infused foam
−Medium firm feel may not suit those wanting softer support
$489.99
as of 11/03/2026 22:48 PST - Details
Novilla

King, Memory Foam, 11 to 12 in

+CertiPUR-certified memory foam
+Ships boxed for easy home delivery
+Cooling design with gel memory foam
−Heavier than thinner king mattresses
$369.99
as of 11/04/2026 00:28 PST - Details
Generic

King, Memory Foam, Medium, 8 to 10 in

+King size fits a large bed frame
+CertiPUR-US certified memory foam
+Cooling gel memory foam construction
−Thicker than an 8-inch mattress, which may need deeper sheets
No price recorded yet.
Generic

King, Memory Foam, Firm, 8 to 10 in

+King size fits two sleepers or a larger frame
+Memory foam conforms to the body
+CertiPUR-US certified foam
−Firm feel may feel hard for side sleepers
No price recorded yet.
Generic

King, Memory Foam, Soft, 8 to 10 in

+CertiPUR-US certified foam for a certified material standard
+Soft feel for sleepers who prefer cushioning
+Boxed for delivery to a doorway
−Soft feel may not suit sleepers who want firm support
No price recorded yet.
Opoiar

King, Memory Foam, 8 to 10 in

+King size fits two sleepers or a larger bed frame
+CertiPUR certified foam for lower chemical emissions
+Green tea gel memory foam with cooling feature
No price recorded yet.
Novilla

King, Memory Foam, 13 in and up

+CertiPUR-certified memory foam
+Ships boxed for easy home delivery
+Cooling design with gel memory foam
−Heavier than thinner king mattresses
$449.99
as of 11/04/2026 00:28 PST - Details
Bhxwry

King, Memory Foam, 11 to 12 in

+King size fits larger bedrooms and couples
+Memory foam contours to the body
+Green tea gel infused foam
−Memory foam can trap heat compared with springs
$191.00
as of 11/03/2026 23:45 PST - Details
Generic

King, Memory Foam, 11 to 12 in

+King size fits a large bed frame
+CertiPUR-US certified memory foam
+Open-cell foam designed for breathability
−Thick 11 to 12 inch profile is taller than standard mattresses
No price recorded yet.
Generic

King, Memory Foam, 11 to 12 in

+Cooling green tea gel memory foam
+CertiPUR-US certified memory foam
+Fiberglass free cover
−Extra firm feel may be too hard for many sleepers
No price recorded yet.
Signature Design by Ashley

King, Memory Foam, Medium Firm, 11 to 12 in

−Cooling not listed: 23 of the 33 here list one
$449.99
as of 11/04/2026 02:41 PST - Details
Sealy

King, Memory Foam, 11 to 12 in

−Cooling not listed: 23 of the 33 here list one
$749.00
as of 11/04/2026 02:36 PST - Details

Compare specs

mattressSizeTypeFirmnessThicknessSpec scorePrice
KingMemory Foam13 in and upn/a$365.48
as of 11/04/2026 00:28 PST - Details
KingMemory FoamFirm11 to 12 inn/a$506.88
as of 11/04/2026 02:37 PST - Details
KingMemory FoamMedium Firm11 to 12 inn/a$489.99
as of 11/03/2026 22:48 PST - Details
KingMemory Foam11 to 12 inn/a$369.99
as of 11/04/2026 00:28 PST - Details
KingMemory FoamMedium8 to 10 inn/aNo current price
KingMemory FoamFirm8 to 10 inn/aNo current price
KingMemory FoamSoft8 to 10 inn/aNo current price
KingMemory Foam8 to 10 inn/aNo current price
KingMemory Foam13 in and upn/a$449.99
as of 11/04/2026 00:28 PST - Details
KingMemory Foam11 to 12 inn/a$191.00
as of 11/03/2026 23:45 PST - Details

Before you buy

Spec scores, pros and cons, and prices are explained in the How it works section of the About page.