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.

Sort & Filter

Sleepy's Basic Memory Foam Firm Mattress

2307

Starting at

$1000⁹⁹

Firm Comfort, best for

Back;Stomach Sleepers
Pain
Support
Temperature

72 hour sale ends Monday!

Serta Perfect Sleeper Sleep Excellence Plush Mattress

586

Starting at

$1000⁹⁹

$1700⁹⁹

$700 OFF

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

1479

Starting at

$1500⁹⁹

Medium Comfort, best for

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

72 hour sale ends Monday + FREE adjustable base with code ELEVATE (must add base to cart), FREE ADJUSTABLE BASE ³ up to $499 value with code ELEVATE (must add base to cart)

Beautyrest Silver BRS900 11.75" Medium Firm Mattress

1388

Starting at

$1000⁹⁹

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

26705

Starting at

$1999⁰⁰

Medium Comfort, best for

Back;Side;Stomach Sleepers
Pain
Temperature
Allergies

Receive $300 Instant Gift⁴ with purchase.

Sealy Essentials Winter Green 13" Plush Euro Pillow Top Mattress

492

Starting at

$1060⁹⁹

Plush Comfort, best for

Side Sleepers
Pain
Allergies
Temperature

72 hour sale ends Monday!

Sealy Essentials Winter Green 12" Medium Euro Top Mattress

542

Starting at

$1380⁹⁹

Medium Comfort, best for

Back;Side;Stomach Sleepers
Pain
Allergies
Temperature

72 hour sale ends Monday!

Beautyrest Silver BRS900 12" Plush Mattress

701

Starting at

$1700⁹⁹

Plush Comfort, best for

Side Sleepers
Bed Partner
Pain
Temperature

72 hour sale ends Monday + FREE adjustable base with code ELEVATE (must add base to cart), FREE ADJUSTABLE BASE ³ up to $499 value with code ELEVATE (must add base to cart)

Nectar Luxe 14" Medium Memory Foam Mattress

134

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

134

Starting at

$1450⁹⁹

Medium Comfort, best for

Back;Side;Stomach Sleepers
Temperature
Pain
Bed Partner

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

Tulo 11" Medium Firm Cooling Hybrid Mattress

196

Starting at

$1300⁹⁹

Medium Comfort, best for

Back;Side;Stomach Sleepers
Temperature
Pain
Bed Partner

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

Tulo 13" Medium Firm Cooling Hybrid Mattress

156

Starting at

$1500⁹⁹

Medium Comfort, best for

Back;Side;Stomach Sleepers
Temperature
Pain
Bed Partner

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

Zinus Green Tea 12 Cushioned Firm Memory Foam Mattress

1081

Starting at

$1000⁹⁹

Firm Comfort, best for

Back;Stomach Sleepers
Pain
Temperature

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

Tempur-Pedic TEMPUR-ProAdapt 12" Firm Mattress

3370

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

2707

Starting at

$4099⁰⁰

Medium Comfort, best for

Back;Side;Stomach Sleepers
Pain
Bed Partner
Temperature

Receive $300 Instant Gift⁴ with purchase.

Beautyrest PressureSmart 2.0 Extra Firm 13.5" Mattress

1478

Starting at

$2900⁹⁹

Extra Firm Comfort, best for

Back;Stomach Sleepers
Pain
Temperature
Bed Partner

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

Beautyrest Black Series Three 15.25" Medium Mattress

1285

Starting at

$4299⁰⁰

Medium Comfort, best for

Back;Side;Stomach Sleepers
Pain
Bed Partner
Temperature

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

Tempur-Pedic TEMPUR-LuxeBreeze Medium Hybrid 13" Mattress

1159

Starting at

$6299⁰⁰

Medium Comfort, best for

Back;Side;Stomach Sleepers
Temperature
Pain
Bed Partner

Receive $300 Instant Gift⁴ with purchase.

Tempur-Pedic TEMPUR-ProBreeze Medium Hybrid 12" Mattress

1056

Starting at

$5299⁰⁰

Medium Comfort, best for

Back;Side;Stomach Sleepers
Temperature
Pain
Bed Partner

Receive $300 Instant Gift⁴ with purchase.

Beauty Sleep® Midnight Dream 14.25" Ultra Plush Pillow Top Mattress

216

Starting at

$1500⁹⁹

Ultra Plush Comfort, best for

Side Sleepers
Toss and Turn
Bed Partner
Temperature

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

Beautyrest Black Series Three 14.25" Extra Firm Mattress

181

Starting at

$4299⁰⁰

Firm Comfort, best for

Back;Stomach Sleepers
Pain
Bed Partner
Temperature

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

Tulo 12" Plush Cooling Hybrid Mattress

132

Starting at

$1450⁹⁹

Plush Comfort, best for

Side Sleepers
Temperature
Pain
Bed Partner

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

Pressuresmart MF 13" Plush Mattress

Starting at

$1350⁹⁹

$2000⁹⁹

$650 OFF

Plush Comfort, best for

Side Sleepers
Pain
Bed Partner
Temperature

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

Beauty Sleep® Midnight Dream 12.5" Firm Mattress

Starting at

$1450⁹⁹

Firm Comfort, best for

Back;Stomach Sleepers
Toss and Turn
Bed Partner
Temperature

72 hour sale ends Monday!

Chattam & Wells Fontainebleau 18" Plush Euro Top Mattress

Starting at

$8200⁹⁹

$9100⁹⁹

$900 OFF

Plush Comfort, best for

Side Sleepers
Pain
Temperature
Allergies

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

Tempur-Pedic TEMPUR-ActiveBreeze 13" Medium Hybrid Mattress

Starting at

$7199⁰⁰

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 about more than just finding a place to rest at night—it’s about crafting a sleep experience that supports your lifestyle, fits your space, and meets your unique comfort needs. The California King size, known for its extra length, is perfect for taller individuals or couples who appreciate a little more legroom to stretch out. Imagine sinking into a 12 inch mattress after a long day, the plush layers enveloping you in comfort as the gentle spring breeze drifts through your bedroom window. Whether you’re outfitting a spacious master suite or upgrading your guest room in time for summer visitors, the Cal King 12 inch mattress offers a combination of generous dimensions and substantial support that can truly transform your sleep environment.

When considering a 12 inch mattress, think about the ways it can enhance daily routines and special occasions alike. For families, a Cal King mattress provides ample space for weekend mornings when kids and pets inevitably join you for a cozy snuggle. The extra thickness of a 12 inch mattress often means additional comfort layers, which can be especially beneficial if you’re seeking relief from pressure points or desire a more luxurious feel. These mattresses are also a thoughtful gift for newlyweds setting up their first home together or for parents who deserve an upgrade after years of prioritizing everyone else’s comfort. As the days grow warmer and the nights grow longer, investing in a high-quality mattress can make all the difference—helping you wake refreshed and ready to enjoy everything the season has to offer, from early morning jogs to late-night movie marathons.

Selecting the right Cal King 12 inch mattress involves balancing factors like firmness, material composition, and temperature regulation. Memory foam options can contour to your body, providing personalized support and minimizing motion transfer—ideal if you share your bed with a partner. Hybrid designs offer a blend of responsive coils and cushioning foam, delivering both stability and plushness. If you tend to sleep hot, look for mattresses with breathable covers or cooling gel layers to help you stay comfortable through those balmy May nights. Durability is another key consideration, especially for those looking for a long-term investment in their sleep health. For those interested in exploring the most luxurious sleep options available, you can browse our curated selection of Cal King Premium Mattresses to discover advanced features and materials designed for ultimate comfort. Whether you’re upgrading your own bedroom or searching for a housewarming gift that will be remembered for years, a Cal King 12 inch mattress offers the perfect blend of spaciousness, support, and style to suit a wide range of needs and preferences.