Cal King Antimicrobial Mattresses

Explore Cal King Antimicrobial Mattresses at Mattress Firm to find a spacious sleep surface that fits your bedroom and comfort preferences. Compare available mattress options by feel, support level and price to make choosing your next mattress simple.

Beautyrest BR800 12" Plush Euro Top Mattress

762

Starting at

$1399⁹⁹

Plush Comfort, best for

Side Sleepers
Toss and Turn
Pain
Bed Partner
Temperature

Beautyrest Silver BRS900 11.75" Medium Firm Mattress

1768

Starting at

$1099⁹⁹

Medium Comfort, best for

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

FREE ADJUSTABLE BASE ³ with code ELEVATE

Purple RestorePlus 13" Firm Hybrid Mattress

1668

Starting at

$3999⁰⁰

$4399⁰⁰

$400 OFF

Firm Comfort, best for

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

Beautyrest BR800 11.5" Medium Firm Mattress

3260

Starting at

$1299⁹⁹

Medium Comfort, best for

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

Purple RestorePremier 13" Firm Hybrid Mattress

1615

Starting at

$4799⁰⁰

$5199⁰⁰

$400 OFF

Firm Comfort, best for

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

Beautyrest BR800 13.5" Plush Pillow Top Mattress

2809

Starting at

$1499⁹⁹

Plush Comfort, best for

Side Sleepers
Toss and Turn
Pain
Bed Partner
Temperature

FREE ADJUSTABLE BASE ³ with code ELEVATE

Beautyrest Silver BRS900 11.75" Extra Firm Mattress

3337

Starting at

$1699⁹⁹

Extra Firm Comfort, best for

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

FREE ADJUSTABLE BASE ³ with code ELEVATE

Beautyrest Silver BRS900 12" Plush Mattress

1166

Starting at

$1699⁹⁹

Plush Comfort, best for

Side Sleepers
Temperature
Pain
Bed Partner
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Purple RestorePlus Cool Touch 13" Hybrid Mattress

1061

Starting at

$4299⁰⁰

$4699⁰⁰

$400 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 13.75" Extra Firm Mattress

1847

Starting at

$1999⁹⁹

Extra Firm Comfort, best for

Back, Stomach Sleepers
Temperature
Pain
Bed Partner
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

A California king mattress gives couples and solo sleepers an expansive 72-by-84-inch sleep surface, with extra length that can feel especially comfortable for taller sleepers. When that generous size is paired with antimicrobial features, the result can support a cleaner, more comfortable sleep environment as part of a thoughtful bedroom routine. California king antimicrobial mattresses may use treated covers, antimicrobial fibers or material infusions such as copper to help inhibit the growth of certain bacteria, mold and other microorganisms on or within specific mattress components. The exact technology varies by construction and manufacturer, so it is important to read the product details closely to understand what is treated, how the claim is tested and how the mattress should be cared for. Antimicrobial properties are not a substitute for regular cleaning or a protective cover, but they can be a useful consideration for sleepers who want added attention to freshness and hygiene. A washable, well-fitting mattress protector can help shield the sleep surface from perspiration, spills and everyday debris while making routine care easier. Keeping bedding clean, allowing the mattress to breathe during sheet changes and following the recommended rotation or setup instructions can also help maintain a pleasant sleep space during the cooler months.

The right California king antimicrobial mattress still needs to feel right for your body and your bedroom. All-foam designs are often chosen for their pressure-relieving contour, especially around the shoulders, hips and lower back. Memory foam can create the enveloping feeling of settling into a warm, supportive layer, while gel-infused foam may help with temperature management by adding materials designed to disperse heat. Hybrid mattresses combine foam comfort layers with individually encased coils, creating a balance of cushioning, responsive support and airflow through the coil system. Innerspring styles can offer a more buoyant feel and easier movement across the surface, which some sleepers prefer when changing positions during the night. A medium feel is a common starting point for couples because it can provide a blend of cushioning and support, but comfort is personal. Side sleepers may appreciate softer pressure relief at the shoulders and hips, while back and stomach sleepers often look for a steadier, more supportive surface that helps keep the body aligned. Couples should also consider motion isolation if one person gets up early, along with edge support if both sleepers use the full width of the mattress. For more options organized around this type of feature, explore King Antimicrobial Mattresses and compare the construction, feel, height and care requirements of each choice.

A California king antimicrobial mattress can be a practical upgrade for a primary bedroom, a spacious retreat for a taller sleeper or a generous addition to a guest room. It may also be a meaningful housewarming gift for someone moving into a larger home, settling into a new main bedroom or creating a more comfortable space for overnight guests. Because a California king frame and bedding require more room than a standard king setup, measure the bedroom, doorways, hallways and stairways before ordering. Leave enough clearance to walk around the bed and open nearby drawers or doors, and confirm that the foundation is compatible with the mattress design and warranty requirements. If the mattress will be shared, compare firmness preferences and sleeping positions before making a decision. If it is intended for a guest room, a balanced feel and durable cover may be more accommodating to different sleepers. Pay attention to mattress height as well, since a taller profile can change how easy it is to get in and out of bed and may require deeper-pocket sheets. During periods when indoor air feels drier or windows stay closed, fresh bedding and occasional ventilation can make the room feel inviting without adding extra work. With the right size, support level, materials and protection, a California king antimicrobial mattress can make the bed feel calm, clean and comfortably prepared for restorative zzz's.

What are antimicrobial mattresses made of? + -

Antimicrobial mattresses may feature treated fabrics, antimicrobial fibers or specialized layers designed to be part of the mattress cover or construction. Materials vary by brand and model, so review each mattress’s product details for specific information.

What comfort options are available with antimicrobial mattresses? + -

Antimicrobial mattresses are available in a range of comfort feels, including plush, medium and firm. Consider your preferred sleeping position, support needs and the feel you enjoy most when comparing options.

Can antimicrobial mattresses include memory foam or hybrid construction? + -

Yes. Antimicrobial mattresses may use memory foam, innerspring or hybrid construction. Memory foam can provide contouring comfort, while hybrid designs combine foam layers with individually wrapped coils for a different feel.

How should I care for an antimicrobial mattress? + -

Use a compatible mattress protector, rotate the mattress according to the manufacturer’s instructions and keep bedding clean. Always follow the care guidelines provided for the specific mattress cover and materials.

How do I choose the right antimicrobial mattress? + -

Compare the mattress’s comfort level, materials, construction and cover features. It can also help to consider your preferred sleeping position and whether you enjoy the contouring feel of foam or the responsive feel of a hybrid mattress.