Cal King 12 Inch Mattresses

Experience the ultimate in sleep comfort and spaciousness with our selection of cal king 12 inch mattresses. Perfectly designed for those who value both luxury and ample sleeping space, these mattresses offer an ideal balance of support and plushness. Whether you're upgrading your bedroom or seeking a more restful night's sleep, our collection provides a variety of options to meet your needs. Explore the possibilities of enhanced rest with cal king 12 inch mattresses, where quality meets comfort in every layer.

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Sleepy's By Sealy Medium Euro Top Mattress

3341

Starting at

$800⁹⁹

Medium Comfort, best for

Back;Side;Stomach Sleepers
Pain
Temperature
Bed Partner

FREE ADJUSTABLE BASE ³ up to $499 value with code ELEVATE (must add base to cart)

Serta iSeries 2.0 Hybrid 2000 12.5" Firm Mattress

1655

Starting at

$2400⁹⁹

$3000⁹⁹

$600 OFF

Firm Comfort, best for

Back;Stomach Sleepers
Temperature
Bed Partner
Pain

Save up to 749 on a premium adjustable base with mattress purchase. Use code ELEVATE (must add base to cart)

Serta Perfect Sleeper Sleep Excellence Plush Mattress

653

Starting at

$1700⁹⁹

Plush Comfort, best for

Side Sleepers
Pain
Toss and Turn
Pain

FREE ADJUSTABLE BASE ³ up to $499 value with code ELEVATE (must add base to cart)

Beautyrest BR800 13.5" Medium Pillow Top Mattress

1526

Starting at

$1500⁹⁹

Medium Comfort, best for

Back;Side;Stomach Sleepers
Toss and Turn
Pain
Bed Partner

FREE ADJUSTABLE BASE ³ up to 499 value with code ELEVATE (must add base to cart)

Beautyrest Silver BRS900 11.75" Medium Firm Mattress

1410

Starting at

$800⁹⁹

$1000⁹⁹

$200 OFF

Medium Comfort, best for

Back;Side;Stomach Sleepers
Bed Partner
Pain
Temperature

FREE ADJUSTABLE BASE ³ up to $499 value with code ELEVATE (must add base to cart)

Purple Original Mattress

26736

Starting at

$1999⁰⁰

Medium Comfort, best for

Back;Side;Stomach Sleepers
Pain
Temperature
Allergies

Sealy Essentials Winter Green 13" Plush Euro Pillow Top Mattress

496

Starting at

$1460⁹⁹

Plush Comfort, best for

Side Sleepers
Pain
Allergies
Temperature

Beautyrest BR800 12" Plush Euro Top Mattress

580

Starting at

$1400⁹⁹

Plush Comfort, best for

Side Sleepers
Toss and Turn
Pain
Bed Partner

FREE ADJUSTABLE BASE ³ up to 499 value with code ELEVATE (must add base to cart)

Sealy Essentials Winter Green 12" Medium Euro Top Mattress

545

Starting at

$1380⁹⁹

Medium Comfort, best for

Back;Side;Stomach Sleepers
Pain
Allergies
Temperature

Beautyrest Silver BRS900 12" Plush Mattress

739

Starting at

$1700⁹⁹

Plush Comfort, best for

Side Sleepers
Bed Partner
Pain
Temperature

FREE ADJUSTABLE BASE ³ up to 499 value with code ELEVATE (must add base to cart)

Nectar Luxe 14" Medium Memory Foam Mattress

151

Starting at

$1499⁰⁰

$2249⁰⁰

$750 OFF

Medium Comfort, best for

Back;Side;Stomach Sleepers
Pain
Bed Partner
Temperature

Tulo 12" Medium Firm Cooling Hybrid Mattress

136

Starting at

$1450⁹⁹

Medium Comfort, best for

Back;Side;Stomach Sleepers
Temperature
Pain
Bed Partner

Tulo 11" Medium Firm Cooling Hybrid Mattress

197

Starting at

$1300⁹⁹

Medium Comfort, best for

Back;Side;Stomach Sleepers
Temperature
Pain
Bed Partner

Pressuresmart MF 15" Plush Euro Top Mattress

Starting at

$1900⁹⁹

$2400⁹⁹

$500 OFF

Plush Comfort, best for

Side Sleepers
Pain
Bed Partner
Temperature

Save up to 749 on a premium adjustable base with mattress purchase. Use code ELEVATE (must add base to cart)

Tulo 13" Medium Firm Cooling Hybrid Mattress

159

Starting at

$1500⁹⁹

Medium Comfort, best for

Back;Side;Stomach Sleepers
Temperature
Pain
Bed Partner

Sealy Essentials Winter Green 12" Plush Euro Top Mattress

347

Starting at

$1380⁹⁹

Plush Comfort, best for

Side Sleepers
Pain
Allergies
Temperature

Beautyrest Black Series Two 16.25" Plush Pillow Top Mattress

200

Starting at

$3599⁰⁰

Plush Comfort, best for

Side Sleepers
Pain
Bed Partner
Temperature

$300 ⁶ adjustable base instant gift with purchase.

Tempur-Pedic TEMPUR-ProAdapt 12" Medium Hybrid Mattress

3934

Starting at

$4099⁰⁰

Medium Comfort, best for

Back;Side;Stomach Sleepers
Pain
Bed Partner
Temperature

Receive $300 Instant Gift⁴ with purchase.

Tempur-Pedic TEMPUR-ProAdapt 12" Firm Mattress

3438

Starting at

$4099⁰⁰

Firm Comfort, best for

Back;Stomach Sleepers
Pain
Bed Partner
Temperature

Receive $300 Instant Gift⁴ with purchase.

Tempur-Pedic TEMPUR-ProAdapt 12" Medium Mattress

2714

Starting at

$4099⁰⁰

Medium Comfort, best for

Back;Side;Stomach Sleepers
Pain
Bed Partner
Temperature

Receive $300 Instant Gift⁴ with purchase.

Tempur-Pedic TEMPUR-ProAdapt 12" Soft Mattress

2657

Starting at

$4099⁰⁰

Plush Comfort, best for

Side Sleepers
Pain
Bed Partner
Temperature

Receive $300 Instant Gift⁴ with purchase.

Beautyrest Black Series Three 15.25" Medium Mattress

1375

Starting at

$4299⁰⁰

Medium Comfort, best for

Back;Side;Stomach Sleepers
Pain
Bed Partner
Temperature

$300 ⁶ adjustable base instant gift with purchase.

Tempur-Pedic TEMPUR-LuxeAdapt 13" Firm Mattress

994

Starting at

$5399⁰⁰

Firm Comfort, best for

Back;Stomach Sleepers
Pain
Bed Partner
Temperature

Receive $300 Instant Gift⁴ with purchase.

Tulo 12" Plush Cooling Hybrid Mattress

135

Starting at

$1450⁹⁹

Plush Comfort, best for

Side Sleepers
Temperature
Pain
Bed Partner

Chattam & Wells Fontainebleau 18" Plush Euro Top Mattress

Starting at

$9100⁹⁹

Plush Comfort, best for

Side Sleepers
Pain
Temperature
Allergies

Save up to 749 on a premium adjustable base with mattress purchase. Use code ELEVATE (must add base to cart)

Tempur-Pedic TEMPUR-ActiveBreeze 13" Medium Hybrid Mattress

Starting at

$7399⁰⁰

Medium Comfort, best for

Back;Side;Stomach Sleepers
Temperature
Bed Partner
Pain

Need to pair with Tempur Ergo Air Adjustable Base to get full benefits.

Cal King 12 Inch Mattresses

Choosing a Cal King 12 inch mattress is a decision that can transform your bedroom into a haven of comfort and serenity, especially during the long, sun-filled days and warm nights of July. The California King size, with its extra length, is a favorite among taller individuals, couples who like a little more legroom, or anyone who simply craves the expansive feel of a luxury sleep surface. The 12 inch profile strikes an ideal balance—substantial enough to provide robust support and plushness, yet not so tall that it overwhelms the room or makes getting in and out of bed cumbersome. This height is perfect for a variety of sleep preferences, offering enough depth to accommodate advanced comfort layers, cooling technologies, and motion isolation features that are especially appreciated during the summer months when restful sleep can be elusive. Picture yourself unwinding at the end of a busy day, stretching out across the generous width, and sinking into a mattress that cradles every curve without sacrificing support. Whether you’re a side sleeper needing pressure relief at the shoulders and hips, or a back sleeper seeking gentle lumbar support, a 12 inch Cal King mattress can adapt to your unique needs, making it an excellent choice for master bedrooms, guest rooms, or even as a thoughtful housewarming gift for newlyweds or loved ones moving into a new home.

When considering a Cal King 12 inch mattress, it’s helpful to think about who will be using the bed and how it will fit into their lifestyle. For families, this size offers plenty of space for weekend mornings spent reading or sharing breakfast in bed with children or pets. For couples with different sleep schedules or preferences, the ample surface area and advanced construction of a 12 inch mattress can minimize motion transfer, so one person’s tossing and turning doesn’t disturb the other. During the summer, when heat can disrupt sleep, many modern 12 inch mattresses feature cooling gel layers or breathable materials that help regulate temperature, keeping you cool and comfortable through the night. The versatility of the Cal King size also makes it a popular choice for those who entertain overnight guests or want to upgrade their sleeping experience before the busy back-to-school and fall seasons arrive. And as the seasons change, you might find yourself looking ahead to cozier nights and seasonal updates—if you’re planning for autumn or want to explore options specifically designed for cooler weather, you can browse our curated selection of Cal King Fall Mattresses. Ultimately, a Cal King 12 inch mattress is more than just a place to sleep—it’s an investment in comfort, relaxation, and the moments that matter most, whether you’re drifting off after a sun-soaked July day or settling in for a restful night as the weather turns crisp.