Best California King Size Mattresses of 2026

Find more room to stretch out with the best California King size mattresses, ranked by customer review ratings to help you compare with confidence. Measuring 72 inches wide by 84 inches long, a standard California King mattress offers extra length for taller sleepers. Explore top-rated options to find the comfort and support that fit your sleep needs

What to look for in California King mattresses

The best California King mattress for you balances room to stretch out with comfort and support that suit your sleep needs

1. Size And Fit

A standard California King mattress measures 72 inches wide by 84 inches long, making it longer and narrower than a standard king. Measure your bedroom, doorways and bed frame to confirm a good fit with space to move around.

2. Sleep Position And Firmness

Side sleepers often prefer cushioning around the shoulders and hips, while back and stomach sleepers may benefit from a firmer feel. Look for a mattress that balances pressure relief with support for comfortable alignment.

3. Mattress Materials

Memory foam contours to your body, while innerspring mattresses typically offer a more responsive feel. Hybrid mattresses combine coils with comfort layers, and breathable materials can help if you tend to sleep hot.

4. Partner Comfort

If you share your bed, consider motion isolation to help reduce disturbances when your partner moves. Supportive edges can also make more of the mattress surface feel usable, especially since a California King is narrower than a standard king.

Beautyrest BR800 13.5" Plush Pillow Top Mattress

A plush California king mattress with Beautyrest Pocketed Coil springs and Gel Memory Foam Lumbar Support.

2801

Plush Comfort, best for

Side Sleepers
Toss and Turn
Pain
Bed Partner
Temperature

Starting at

$1499⁹⁹

FREE ADJUSTABLE BASE ³ with code ELEVATE

Stearns & Foster Estate 14.5" Firm Mattress

A luxurious, hand-crafted cal king mattress with motion separation, pressure relief, and a cool-to-the-touch cover.

1844

Firm Comfort, best for

Back, Stomach Sleepers
Pain
Bed Partner
Temperature
Allergies
Toss and Turn

Starting at

$3099⁰⁰

Receive $300 Instant Gift⁴ with purchase.

Beautyrest Silver BRS900 12" Plush Mattress

A plush California King mattress with Silver BRS900 technology for consistent comfort and support.

1158

Plush Comfort, best for

Side Sleepers
Temperature
Pain
Bed Partner
Toss and Turn

Starting at

$1699⁹⁹

FREE ADJUSTABLE BASE ³ with code ELEVATE

Nectar Classic 12" Firm Memory Foam Mattress

A firm memory foam mattress with motion separation, pressure relief, and breathable cooling fabric.

238

Firm Comfort, best for

Back, Stomach Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

Starting at

$899⁰⁰

$1399⁰⁰

$500 OFF

Tempur-Pedic TEMPUR-ProAdapt 2.0 12" Medium Mattress

A medium comfort mattress with advanced pressure relief, motion separation, and breathable material.

3924

Medium Comfort, best for

Back, Side, Stomach Sleepers
Pain
Allergies
Bed Partner
Toss and Turn
Temperature

Starting at

$4199⁰⁰

Receive $300 Instant Gift⁴ with purchase + Calm app 3-month free trial

Beautyrest Black Series Three 16.75" Plush Pillow Top Mattress

A breathable, pressure-relieving, and adjustable plush pillow top mattress in black, perfect for a California King bed.

1485

Plush Comfort, best for

Side Sleepers
Bed Partner
Pain
Temperature
Toss and Turn

Starting at

$5199⁰⁰

$300 ⁶ adjustable base instant gift with purchase.

Beautyrest Black Series Three 16.25" Medium Pillow Top Mattress

A breathable, pressure-relieving, and adjustable black mattress with a medium comfort level and a height of 84 inches.

478

Medium Comfort, best for

Back, Side, Stomach Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

Starting at

$5199⁰⁰

$300 ⁶ adjustable base instant gift with purchase.

Beautyrest BR800 Greenwood 11.5" Medium Firm Mattress

A medium firm mattress with AirCool Foam and DualCool Technology for cool, supportive, undisturbed sleep.

3235

Medium Comfort, best for

Side, Back, Stomach Sleepers
Bed Partner
Toss and Turn
Temperature
Pain

Starting at

$589⁹⁹

$1299⁹⁹

$710 OFF

Beautyrest BR800 Greenwood 13.5" Plush Pillow Top Mattress

A plush pillow top mattress with breathable GelTouch Foam and moisture-wicking technology for cool, supportive sleep.

2816

Plush Comfort, best for

Side Sleepers
Bed Partner
Toss and Turn
Temperature
Pain

Starting at

$819⁹⁹

$1499⁹⁹

$680 OFF

FREE ADJUSTABLE BASE ³ with code ELEVATE

Sealy Frisco 2.0 Medium Euro Pillow Top Mattress

A medium Euro pillow top mattress offering cooling, pressure relief, and motion isolation with enhanced edge support.

2319

Medium Comfort, best for

Side, Back, Stomach Sleepers
Pain
Toss and Turn
Temperature

Starting at

$799⁷⁷

$1599⁹⁹

$800 OFF

What materials are commonly used in California King mattresses? + -

Common materials include memory foam, latex, steel coils and quilted fabric covers. All-foam mattresses use foam layers throughout, while hybrid mattresses combine foam or latex comfort layers with a coil support system.

How do plush, medium and firm mattresses differ in feel? + -

Plush mattresses typically have a softer surface with more cushioning, while firm mattresses have a surface with less give. Medium mattresses fall between the two, though firmness labels can vary by brand.

What is the difference between a pillow top and a Euro top mattress? + -

A pillow top has an added cushioning layer with a visible separation from the mattress below. A Euro top has cushioning sewn flush with the mattress edges for a more tailored appearance.

Can a California King mattress be used with an adjustable base? + -

Many memory foam, latex and hybrid mattresses are designed for use with adjustable bases, but compatibility varies by construction. Check the mattress manufacturer's guidance before pairing it with a base.

How should I care for my mattress? + -

Use a mattress protector and follow the manufacturer's cleaning and rotation instructions. Most mattresses with comfort layers on one side should not be flipped unless the manufacturer specifically recommends it.