Best California King Black Mattress of 2026

Finding the best California King black mattress starts with balancing comfort, support and style for your bedroom. This ranking highlights top-rated options based on user review ratings, making it easier to compare mattresses by overall satisfaction and find a California King that suits your sleep preferences and space.

What to look for in a California King black mattress

The best California King black mattress combines the right comfort, support and style for your bedroom.

1. Mattress Comfort

Choose a comfort level that matches your preferred sleep feel, from plush and pressure-relieving to firm and supportive. Your sleeping position can also help guide your choice, since side sleepers often prefer more cushioning while back and stomach sleepers may prefer a firmer feel.

2. Size And Space

A California King mattress measures 72 inches wide by 84 inches long, giving couples extra length without taking up the width of a standard king. Be sure your bedroom has enough space for the mattress, bed frame and room to move around the bed.

3. Support And Materials

Consider the mattress construction, such as memory foam, innerspring or hybrid materials. Features like targeted support, pressure relief and breathable comfort layers can help create a more comfortable sleep experience.

4. Black Design And Compatibility

A black mattress can complement modern, minimalist or dramatic bedroom styles. Confirm that the mattress works with your California King bed frame, adjustable base and sheets, and check whether the black color is visible or covered by a mattress protector and bedding.

Beautyrest Black Series Two 16.25" Plush Pillow Top Mattress

A plush, black cal king mattress with advanced support, cooling technology, and immediate pressure relief.

294

Plush Comfort, best for

Side Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

Starting at

$3699⁰⁰

$4099⁰⁰

$400 OFF

$300 ⁶ adjustable base instant gift with purchase.

Beautyrest Black Series Two 16.5" Medium Pillow Top Mattress

A breathable, pressure-relieving, and adjustable medium pillow top mattress in black, made with memory foam.

295

Medium Comfort, best for

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

Starting at

$3699⁰⁰

$4099⁰⁰

$400 OFF

$300 ⁶ adjustable base instant gift with purchase.

Beautyrest Black Series Three 15.25" Medium Mattress

A breathable, pressure-relieving medium mattress in black, made with memory foam for cal king size beds.

2298

Medium Comfort, best for

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

Starting at

$4199⁰⁰

$4799⁰⁰

$600 OFF

$300 ⁶ adjustable base instant gift with purchase.

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.

1463

Plush Comfort, best for

Side Sleepers
Bed Partner
Pain
Temperature
Toss and Turn

Starting at

$4599⁰⁰

$5199⁰⁰

$600 OFF

$300 ⁶ adjustable base instant gift with purchase.

Beautyrest Black Series Two 15.5" Medium Mattress

A breathable, pressure-relieving, and medium comfort cal king mattress in black with memory foam material.

516

Medium Comfort, best for

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

Starting at

$3499⁰⁰

$3899⁰⁰

$400 OFF

$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.

471

Medium Comfort, best for

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

Starting at

$4599⁰⁰

$5199⁰⁰

$600 OFF

$300 ⁶ adjustable base instant gift with purchase.

Beautyrest Black Series One 13.5" Extra Firm Mattress

A breathable, extra firm Beautyrest mattress with advanced support and temperature management for a luxurious rest.

701

Extra Firm Comfort, best for

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

Starting at

$2499⁰⁰

$2899⁰⁰

$400 OFF

$300 ⁶ adjustable base instant gift with purchase.

Beautyrest Black Series One 14.25" Medium Mattress

A medium comfort mattress with advanced support, motion separation, and temperature management in a sleek black color.

445

Medium Comfort, best for

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

Starting at

$2799⁰⁰

$3199⁰⁰

$400 OFF

$300 ⁶ adjustable base instant gift with purchase.

Beautyrest Black Series Two 14.25" Firm Mattress

A breathable, pressure-relieving, and firm memory foam mattress with advanced sleep technology and adjustable base compatibility.

358

Firm Comfort, best for

Back, Stomach Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

Starting at

$3499⁰⁰

$3899⁰⁰

$400 OFF

$300 ⁶ adjustable base instant gift with purchase.

Beautyrest Black Series One 14.75" Medium Pillow Top Mattress

A luxurious medium pillow top mattress with advanced support and temperature management for an extraordinary rest.

334

Medium Comfort, best for

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

Starting at

$3099⁰⁰

$3499⁰⁰

$400 OFF

$300 ⁶ adjustable base instant gift with purchase.

What is a black mattress? + -

A black mattress features a dark outer cover or upholstery that creates a modern, streamlined look. It can complement contemporary, industrial, minimalist and other bedroom styles.

What bedroom styles work well with a black mattress? + -

Black mattresses pair well with neutral bedding, wood furniture, metal accents and bold colors. They can add contrast to light interiors or create a cohesive look in darker bedrooms.

What bedding colors pair well with a black mattress? + -

White, cream, gray, beige and muted earth tones create balanced contrast with black. Jewel tones and soft pastels can also add color without overwhelming the bedroom.

How can I coordinate a black mattress with my bedroom furniture? + -

Repeat black accents through the bed frame, lamps, artwork or hardware for a cohesive look. Mixing black with natural wood or light-colored furniture can create visual balance.

How should I care for the cover of a black mattress? + -

Follow the care instructions provided with the mattress. Keep the cover clean with gentle, manufacturer-approved methods, and use bedding to help protect the surface from everyday dust and spills.