King Memory Foam Mattresses

33 king memory foam mattresses from Novilla, Nectar, Sweetnight and more. Most cost $270 to $3,799, and half cost less than $467.

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 (9)

Novilla

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

$445.88

as of 11/04/2026 00:28 PST - Details

Casper

King, Memory Foam, Medium

$845.00

as of 11/04/2026 14:42 PST - Details

Novilla

King, Memory Foam, Medium Firm, 13 in and up

$599.99

as of 11/04/2026 00:28 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

Tempur-Pedic

King, Memory Foam, Firm, 13 in and up

$4,099.99

as of 11/04/2026 05:39 PST - Details

Compare specs

Size	Type	Firmness	Thickness	Spec score	Price
King	Memory Foam	Medium Firm	11 to 12 in	n/a	$445.88 as of 11/04/2026 00:28 PST - Details
King	Memory Foam	Medium		n/a	$845.00 as of 11/04/2026 14:42 PST - Details
King	Memory Foam	Medium Firm	13 in and up	n/a	$599.99 as of 11/04/2026 00:28 PST - Details
King	Memory Foam		11 to 12 in	n/a	$749.00 as of 11/04/2026 02:36 PST - Details
King	Memory Foam	Firm	13 in and up	n/a	$4,099.99 as of 11/04/2026 05:39 PST - Details

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