12 Inch Mattresses For Platform Beds

Shop 12 Inch Mattresses For Platform Beds in a variety of comfort options, sizes and price points to find a mattress that suits your sleep preferences and bedroom setup. Explore choices for every type of sleeper and create a space that helps make sleep easy™.

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Tulo Bamboo 12" Medium Plush Green Tea Memory Foam Mattress

5555

Starting at

$269⁹⁹

$629⁹⁹

$360 OFF

Medium Comfort, best for

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

Beautyrest BR800 Greenwood 12" Plush Euro Top Mattress

737

Starting at

$1099⁹⁹

Plush Comfort, best for

Side Sleepers
Bed Partner
Toss and Turn
Temperature
Pain

FREE ADJUSTABLE BASE ³ with code ELEVATE

Beauty Sleep® Midnight Dream 12.25" Medium Euro Top Mattress

287

Starting at

$459⁹⁹

$1099⁹⁹

$640 OFF

Medium Comfort, best for

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

FREE ADJUSTABLE BASE ³ with code ELEVATE

Serta Classic Blissville 11.5" Medium Mattress

165

Starting at

$1249⁹⁹

Medium Comfort, best for

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

FREE ADJUSTABLE BASE ³ with code ELEVATE

Tempur-Pedic TEMPUR-ProAdapt 12" Firm Previous Generation Mattress

6684

Starting at

$2029⁷⁷

$2899⁰⁰

$869 OFF

Firm Comfort, best for

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

Sierra Sleep By Ashley Peak 2.0 12" Hybrid Mattress

Starting at

$999⁹⁹

Plush Comfort, best for

Side Sleepers
Pain
Bed Partner
Toss and Turn

Tulo Green Tea 12" Plush Mattress

Starting at

$319⁹⁹

$929⁹⁹

$610 OFF

Plush Comfort, best for

Side Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

Tulo Copper Memory Foam 12" Plush Mattress

Starting at

$249⁹⁹

$899⁹⁹

$650 OFF

Plush Comfort, best for

Side Sleepers
Pain
Temperature

Beauty Sleep® Midnight Dream II 11.5" Firm Mattress

160

Starting at

$369⁹⁹

$959⁹⁹

$590 OFF

Firm Comfort, best for

Back, Stomach Sleepers
Toss and Turn
Bed Partner
Pain
Temperature

Beautyrest BR800 12" Plush Euro Top Mattress

735

Starting at

$469⁹⁹

$1099⁹⁹

$630 OFF

Plush Comfort, best for

Side Sleepers
Toss and Turn
Pain
Bed Partner
Temperature

Sealy Essentials Winter Green 12" Medium Euro Top Mattress

603

Starting at

$569⁹⁹

$1039⁹⁹

$470 OFF

Medium Comfort, best for

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

Serta Perfect Sleeper Nurture Night 12" Firm Mattress

1186

Starting at

$539⁰⁰

$599⁰⁰

$60 OFF

Firm Comfort, best for

Back, Stomach Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Beautyrest Silver BRS900 12" Plush Mattress

1140

Starting at

$549⁹⁹

$1399⁹⁹

$850 OFF

Plush Comfort, best for

Side Sleepers
Temperature
Pain
Bed Partner
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Nectar Classic 12" Firm Memory Foam Mattress

231

Starting at

$599⁰⁰

$949⁰⁰

$350 OFF

Firm Comfort, best for

Back, Stomach Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

Serta Perfect Sleeper Oasis Sleep 12" Extra Firm Mattress

905

Starting at

$799⁰⁰

$979⁰⁰

$180 OFF

Extra Firm Comfort, best for

Back, Stomach Sleepers
Pain
Temperature
Bed Partner
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Sealy Essentials Winter Green 12" Plush Euro Top Mattress

393

Starting at

$569⁹⁹

$1039⁹⁹

$470 OFF

Plush Comfort, best for

Side Sleepers
Bed Partner
Pain
Temperature
Toss and Turn
Allergies

Tempur-Pedic TEMPUR-ProAdapt 2.0 12" Medium Hybrid Mattress

5970

Starting at

$2599⁰⁰

$2999⁰⁰

$400 OFF

Medium Comfort, best for

Back, Side, 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-ProAdapt 2.0 12" Firm Mattress

4992

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-ProAdapt 2.0 12" Medium Mattress

3858

Starting at

$2599⁰⁰

$2999⁰⁰

$400 OFF

Medium Comfort, best for

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

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

Serta Perfect Sleeper Pacific Peace 12" Hybrid Firm Mattress

242

Starting at

$769⁰⁰

$949⁰⁰

$180 OFF

Firm Comfort, best for

Back, Stomach Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Tempur-Pedic TEMPUR-ProAdapt 12" Medium Previous Generation Mattress

6542

Starting at

$2379⁷⁷

$3399⁰⁰

$1019 OFF

Medium Comfort, best for

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

Sierra Sleep By Ashley Chime 12" Hybrid Mattress

1927

Starting at

$519⁹⁹

$1749⁹⁹

$1230 OFF

Plush Comfort, best for

Side Sleepers
Pain
Bed Partner
Toss and Turn

Tempur-Pedic TEMPUR-ProBreeze Medium Hybrid 12" Mattress

1654

Starting at

$3499⁰⁰

$3999⁰⁰

$500 OFF

Medium Comfort, best for

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

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

Sierra Sleep By Ashley Chime 12" Memory Foam Mattress

468

Starting at

$1574⁹⁹

Plush Comfort, best for

Side Sleepers
Pain
Bed Partner
Toss and Turn

Serta Classic Blissville 12.5" Firm Mattress

300

Starting at

$439⁹⁹

$1249⁹⁹

$810 OFF

Firm Comfort, best for

Back, Stomach Sleepers
Pain
Temperature
Bed Partner
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

Nectar Classic 12" Firm Hybrid Mattress

108

Starting at

$1049⁰⁰

$1499⁰⁰

$450 OFF

Firm Comfort, best for

Back, Stomach Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

A 12 inch mattress for a platform bed offers a balanced combination of supportive comfort and substantial cushioning without requiring a box spring. This mattress height works well with many platform bed frames, including solid-panel foundations, wood slat beds and metal platform bases, while providing enough room for comfort layers made from memory foam, latex or individually wrapped coils. A 12 inch memory foam mattress can help cushion pressure points around the shoulders, hips and lower back, while a 12 inch hybrid mattress combines contouring foam with responsive innerspring support for a more balanced sleep feel. Before purchasing, confirm that the mattress dimensions match your platform bed size, such as twin, full, queen, king or California King, and consider the overall bed height created by the frame, mattress and bedding. Choosing the best 12 inch mattress for a platform bed also means checking the foundation’s weight capacity, slat spacing and center support requirements. Many mattresses designed for platform beds can rest directly on a supportive foundation, but the base should provide an even surface and follow the mattress manufacturer’s guidelines to help maintain proper support and warranty coverage. Sleep position, body type and preferred firmness are also important: side sleepers may prefer a softer mattress with pressure-relieving foam, while back and stomach sleepers often benefit from a medium-firm or firm mattress that promotes a more supportive feel. A 12 inch mattress-in-a-box can be a convenient option for platform beds, arriving compressed for easier delivery and expanding after it is unboxed. Allow the mattress to fully expand according to the manufacturer’s instructions before adding sheets and enjoying your new sleep setup.

What type of mattress works best with a platform bed? + -

Most mattresses work well with platform beds, including memory foam, hybrid and innerspring designs. Choose a mattress with construction and support that match your comfort preferences and the platform bed’s recommended requirements.

Do mattresses for platform beds need a box spring? + -

Platform beds typically provide a supportive surface, so a box spring is often not needed. Check the platform bed manufacturer’s guidelines to confirm whether an additional foundation is recommended.

What should I look for in a mattress for a platform bed? + -

Consider the mattress material, firmness, comfort layers and support system. It is also helpful to choose a design that complements the platform bed’s surface and overall bedroom style.

Can I use a memory foam mattress on a platform bed? + -

Yes, memory foam mattresses are commonly paired with platform beds. Make sure the bed provides a consistently supportive surface and follow the mattress and bed manufacturers’ care instructions.

How do I care for a mattress on a platform bed? + -

Use a compatible mattress protector, rotate the mattress according to the manufacturer’s instructions and keep the platform surface clean. Reviewing the care label can help maintain the mattress’s materials and appearance.