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 Black Hybrid Series Three 14.5" Firm Mattress

A black firm mattress with Triple Stranded Pocketed Coil Technology for individualized support and cool sleep.

105

Firm Comfort, best for

Pain
Bed Partner
Temperature
Toss and Turn

Starting at

$4699⁰⁰

$300 ⁶ adjustable base instant gift with purchase.

Beautyrest Black Hybrid Series Three 15" Medium Mattress

A black medium mattress with cooling memory foam, pocketed coils, and ventilated latex for pressure relief.

161

Medium Comfort, best for

Pain
Bed Partner
Temperature
Toss and Turn

Starting at

$5199⁰⁰

$300 ⁶ adjustable base instant gift with purchase.

Serta Perfect Sleeper Nurture Night 13.5" Plush Mattress

A breathable, plush memory foam mattress with pressure relief and lumbar gel support for a comfortable night's sleep.

946

Plush Comfort, best for

Side Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

Starting at

$1099⁰⁰

FREE ADJUSTABLE BASE ³ with code ELEVATE

Sealy Posturepedic Ashurst II 13" Soft Mattress

A plush 13" soft mattress with PrecisionFit Coils and SealyComfort Gel Foam for enhanced support.

Plush Comfort, best for

Side Sleepers
Pain
Allergies
Bed Partner
Toss and Turn

Starting at

$1299⁰⁰

$1799⁰⁰

$500 OFF

FREE ADJUSTABLE BASE ³ with code ELEVATE

Sealy Posturepedic Elite Brenham II 15" Medium Mattress

A medium comfort mattress with cooling gel memory foam and PrecisionFit Coils for targeted support.

540

Medium Comfort, best for

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

Starting at

$2599⁰⁰

Receive $200 Instant Gift⁴ with purchase.

Tempur-Pedic TEMPUR-ProAdapt 2.0 12" Medium Mattress

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

3951

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

Tempur-Pedic TEMPUR-ProAdapt 2.0 12" Firm Mattress

A 12" firm mattress with advanced pressure relief, motion separation, and breathable, cool-to-the-touch cover.

5150

Firm Comfort, best for

Back, 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

Sealy Posturepedic Ashurst II 13" Medium Mattress

A medium comfort mattress with PrecisionFit Coils and SealyComfort Gel Foam for support and pressure relief.

687

Medium Comfort, best for

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

Starting at

$2399⁰⁰

FREE ADJUSTABLE BASE ³ with code ELEVATE

Tempur-Pedic TEMPUR-ProAdapt 2.0 12" Medium Hybrid Mattress

A medium hybrid mattress with advanced pressure relief, motion separation, and breathable design for cal king size.

6185

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

Sealy Posturepedic Elite Hybrid Albany II 13" Medium Mattress

A medium comfort mattress with memory foam and cooling technology for targeted support and pressure relief.

430

Medium Comfort, best for

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

Starting at

$2499⁰⁰

Receive $200 Instant Gift⁴ with purchase.

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.