Split California King Size Mattresses

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

Split Mattress options sold only with adjustable bases.

Sleep Number c2 mattress with a vertical panel headboard

Sleep Number c2 mattress

$2,199

4.7 (24658)

Sleep Number c4 mattress with a vertical panel headboard

Sleep Number c4 mattress

$2,399
$300 OFF$2,699

4.7 (23500)

Sleep Number p5 mattress with a Split Channel headboard

Sleep Number p5 mattress

$3,999

4.7 (23975)

Sleep Number p6 mattress with a Split Channel headboard

Sleep Number p6 mattress

$4,199
$400 OFF$4,599

4.7 (20715)

Split California King size unavailable

Sleep Number pSE mattress

4.7 (11369)

Sleep Number m7 mattress with a horizontal panel headboard

Sleep Number m7 mattress

$5,399
$600 OFF$5,999

4.7 (7395)

Sleep Number i8 mattress with a Split Channel headboard

Sleep Number i8 mattress

$5,999

4.8 (66895)

Sleep Number i10 mattress with a white horizontal panel headboard

Sleep Number i10 mattress

$6,799
$800 OFF$7,599

4.8 (22060)

Sleep Number ClimateCool™ smart bed

$6,850

4.8 (605)

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

Sleep Number Climate360® smart bed

Includes Smart Adjustable Base

$14,199

4.7 (5145)