FlexTop King Size Mattresses

Explore our adjustable FlexTop King mattresses, a great choice for couples. Our FlexTop King-sized mattresses let you choose your ideal firmness on each side with generous space for both of you.

FlexTop Mattress options sold only with adjustable bases.

FlexTop King size unavailable

ComfortMode™ Mattress

5.0 (1)

$1,889.30
30% OFF$2,699

4.7 (21839)

Sleep Number p5 mattress with a Split Channel headboard

$2,799.30
30% OFF$3,999

4.7 (22569)

Sleep Number p6 mattress with a Split Channel headboard

$3,219.30
30% OFF$4,599

4.7 (19587)

Sleep Number i8 mattress with a Split Channel headboard

$3,599.40
40% OFF$5,999

4.8 (64279)

Sleep Number i10 mattress with a white horizontal panel headboard

$4,559.40
40% OFF$7,599

4.8 (20860)

Sleep Number ClimateCool Smart Bed

ClimateCool® smart bed

$6,390
10% OFF$7,100

4.7 (640)

Sleep Number Climate 360 smart bed with adjustable firmness and temperature control

Climate360® smart bed

Includes Smart Adjustable Base

$13,004.10
10% OFF$14,449

4.7 (5184)