Sanitized Cal King Mattresses

Sanitized Cal King Mattresses offer spacious comfort for couples, taller sleepers and anyone who enjoys extra room to stretch out. Explore options in this popular mattress size to find a sleep surface that fits your bedroom, preferences and budget, with convenient online shopping and helpful guidance from Sleep Experts®.

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Sleepy's By Sealy Memory Foam Medium Mattress

3503

Starting at

$589⁹⁹

$889⁹⁹

$300 OFF

Medium Comfort, best for

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

Sleepy's By Sealy Memory Foam Plush Mattress

2794

Starting at

$699⁹⁹

$999⁹⁹

$300 OFF

Plush Comfort, best for

Side Sleepers
Pain
Bed Partner
Toss and Turn
Temperature

FREE ADJUSTABLE BASE ³ with code ELEVATE

Sleepy's Signature Total Encasement Mattress Protector

1004

Starting at

$159⁹⁹

Temperature

Beautyrest Silver BRS900 11.75" Extra Firm Mattress

3302

Starting at

$709⁹⁹

$1699⁹⁹

$990 OFF

Extra Firm Comfort, best for

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

FREE ADJUSTABLE BASE ³ with code ELEVATE

Beautyrest BR800 11.25" Firm Mattress

2239

Starting at

$619⁹⁹

$1299⁹⁹

$680 OFF

Firm Comfort, best for

Back, Stomach Sleepers
Toss and Turn
Pain
Bed Partner
Temperature

FREE ADJUSTABLE BASE ³ with code ELEVATE

Stearns & Foster Estate 14.5" Firm Mattress

1823

Starting at

$2799⁰⁰

$3099⁰⁰

$300 OFF

Firm Comfort, best for

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

Receive $300 Instant Gift⁴ with purchase.

Sleepy's 3" Gel Memory Foam Mattress Topper

398

Starting at

$269⁹⁹

Medium Comfort,

Temperature

Beautyrest BR800 13.5" Medium Pillow Top Mattress

1868

Starting at

$819⁹⁹

$1499⁹⁹

$680 OFF

Medium Comfort, best for

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

FREE ADJUSTABLE BASE ³ with code ELEVATE

Beautyrest Silver BRS900-C 13.75" Extra Firm Mattress

1816

Starting at

$859⁹⁹

$1999⁹⁹

$1140 OFF

Extra Firm Comfort, best for

Back, Stomach Sleepers
Temperature
Pain
Bed Partner
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Beautyrest Silver BRS900 11.75" Medium Firm Mattress

1749

Starting at

$809⁹⁹

$1099⁹⁹

$290 OFF

Medium Comfort, best for

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

FREE ADJUSTABLE BASE ³ with code ELEVATE

Beautyrest BR800 12" Plush Euro Top Mattress

739

Starting at

$569⁹⁹

$1399⁹⁹

$830 OFF

Plush Comfort, best for

Side Sleepers
Toss and Turn
Pain
Bed Partner
Temperature

Stearns & Foster Lux Estate Elite 16" Medium Euro Pillow Top Mattress

984

Starting at

$4099⁰⁰

$4699⁰⁰

$600 OFF

Medium Comfort, best for

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

Receive $300 Instant Gift⁴ with purchase.

Beautyrest Silver BRS900 12" Plush Mattress

1147

Starting at

$729⁹⁹

$1699⁹⁹

$970 OFF

Plush Comfort, best for

Side Sleepers
Temperature
Pain
Bed Partner
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Serta Perfect Sleeper Oasis Sleep 14.5" Pillow Top Mattress

1013

Starting at

$1139⁰⁰

$1399⁰⁰

$260 OFF

Medium Comfort, best for

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

FREE ADJUSTABLE BASE ³ with code ELEVATE

Sleepy's 4" Reversible Gel Memory Foam Topper

Starting at

$199⁹⁹

$299⁹⁹

$100 OFF

Medium Comfort,

Temperature
Allergies

Tempur-Pedic TEMPUR-ProAdapt 2.0 12" Firm Mattress

5023

Starting at

$3799⁰⁰

$4199⁰⁰

$400 OFF

Firm Comfort, best for

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

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

Tempur-Pedic TEMPUR-Adapt 2.0 11" Medium Hybrid Mattress

2954

Starting at

$3099⁰⁰

$3299⁰⁰

$200 OFF

Medium Comfort, best for

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

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

Beautyrest Black Series Three 15.25" Medium Mattress

2298

Starting at

$4199⁰⁰

$4799⁰⁰

$600 OFF

Medium Comfort, best for

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

$300 ⁶ adjustable base instant gift with purchase.

Tempur-Pedic TEMPUR-LuxeAdapt 2.0 13" Medium Hybrid Mattress

2273

Starting at

$5099⁰⁰

$5599⁰⁰

$500 OFF

Medium Comfort, best for

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

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

Purple Restore 11.5" Soft Hybrid Mattress

1666

Starting at

$2700⁰⁰

$3399⁰⁰

$699 OFF

Plush Comfort, best for

Side Sleepers
Pain
Allergies
Bed Partner
Toss and Turn
Temperature

Tempur-Pedic TEMPUR-LuxeAdapt 2.0 13" Soft Mattress

1531

Starting at

$5099⁰⁰

$5599⁰⁰

$500 OFF

Plush Comfort, best for

Side Sleepers
Pain
Allergies
Bed Partner
Toss and Turn
Temperature

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

Tempur-Pedic TEMPUR-LuxeAdapt 2.0 13" Firm Mattress

1453

Starting at

$5099⁰⁰

$5599⁰⁰

$500 OFF

Firm Comfort, best for

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

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

Purple RestorePlus Cool Touch 13" Hybrid Mattress

1005

Starting at

$3900⁰⁰

$4699⁰⁰

$799 OFF

Medium Comfort, best for

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

$300 ^◇ adjustable base instant gift with purchase.

Beautyrest Silver BRS900-C 14.5" Medium Mattress

795

Starting at

$859⁹⁹

$1999⁹⁹

$1140 OFF

Medium Comfort, best for

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

FREE ADJUSTABLE BASE ³ with code ELEVATE

Purple Restore Cool Touch 11.5" Hybrid Mattress

790

Starting at

$3000⁰⁰

$3699⁰⁰

$699 OFF

Medium Comfort, best for

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

$300 ^◇ adjustable base instant gift with purchase.

Beautyrest Black Series Two 15.5" Medium Mattress

516

Starting at

$3499⁰⁰

$3899⁰⁰

$400 OFF

Medium Comfort, best for

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

$300 ⁶ adjustable base instant gift with purchase.

Sanitized California King mattresses can help create a cleaner, more comfortable sleep environment for couples, taller sleepers and anyone who enjoys extra room to stretch out. A California King mattress measures 72 inches wide by 84 inches long, offering more length than a standard king while fitting well in many primary bedrooms. For added peace of mind, look for a sanitized Cal King mattress with a removable, washable cover, breathable construction and materials designed to resist odor buildup. Some mattresses also feature antimicrobial treatments or certified foams, but these features are not a substitute for routine care. Always follow the manufacturer’s cleaning instructions to protect the mattress and maintain its comfort and performance. Choosing the right sanitized California King mattress starts with matching the mattress design to your sleep needs. Cooling foam, hybrid and innerspring options can help provide different combinations of pressure relief, airflow and support, while a mattress protector helps shield the sleep surface from spills, dust and everyday buildup. Pair your Cal King mattress with California King sheets, a properly sized bed frame and breathable bedding for a secure fit and a more comfortable setup. Mattress Firm makes it easier to compare sanitized California King mattresses by comfort level, firmness, materials and features, so you can find a clean-feeling, supportive mattress that helps you get better zzz's and live well.

What is a sanitized mattress? + -

A sanitized mattress is treated or finished with features designed to support a cleaner sleep environment. Details vary by mattress, so review the product description for information about its materials and treatment.

What materials are used in sanitized mattresses? + -

Sanitized mattresses may include memory foam, innerspring coils, hybrid layers or comfort materials such as cotton and polyester. The exact construction depends on the mattress model.

Do sanitized mattresses come in different comfort feels? + -

Yes. Sanitized mattresses may be available in plush, medium or firm comfort feels, giving you options based on your preferred level of cushioning and support.

Can I use bedding with a sanitized mattress? + -

Yes. Sheets, mattress protectors and other standard bedding can be used with a sanitized mattress. Choose bedding that fits the mattress profile and follows the care instructions provided with each item.

How should I care for a sanitized mattress? + -

Follow the manufacturer's care instructions. Use a compatible mattress protector, rotate the mattress only if recommended and clean bedding regularly according to its care label.