12 Inch Full Size Mattress

Discover the perfect blend of comfort and support with a luxurious full-size mattress that stands at an impressive twelve inches. Ideal for those seeking a spacious sleep surface without compromising on quality, this mattress size offers ample room for singles or cozy space for couples. Whether you're upgrading your bedroom or furnishing a guest room, a full-size mattress provides versatile sleeping arrangements while ensuring restful nights. With layers designed to enhance your sleep experience, you'll wake up refreshed and ready to tackle the day. Explore your options and find the mattress that promises sweet dreams night after night.

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Serta Perfect Sleeper Oasis Sleep 12" Extra Firm Mattress

741

Starting at

$979⁰⁰

Extra Firm Comfort, best for

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

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

Serta Perfect Sleeper Sleep Excellence Plush Mattress

722

Starting at

$1280⁹⁹

Plush Comfort, best for

Side Sleepers
Pain;Toss and Turn;Pain;Temperature;Bed Partner
Toss and Turn
Pain

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

Serta Perfect Sleeper Nurture Night 12" Firm Mattress

970

Starting at

$679⁰⁰

Firm Comfort, best for

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

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

Tempur-Pedic TEMPUR-ProAdapt 12" Firm Mattress

4290

Starting at

$3249⁰⁰

Firm Comfort, best for

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

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

Tempur-Pedic TEMPUR-ProAdapt 12" Medium Mattress

3407

Starting at

$3249⁰⁰

Medium Comfort, best for

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

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

Tempur-Pedic TEMPUR-ProAdapt 12" Soft Mattress

3271

Starting at

$3249⁰⁰

Plush Comfort, best for

Side Sleepers
Pain;Allergies;Bed Partner;Toss and Turn;Toss and Turn
Bed Partner
Temperature

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

Allerease Maximum Mattress Protector

232

Starting at

$37⁶⁴

Pain;Temperature;Bed Partner;Toss and Turn
Allergies

Serta Perfect Sleeper Oasis Sleep 14.5" Firm Pillow Top Mattress

955

Starting at

$979⁰⁰

Firm Comfort, best for

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

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

Beautyrest BR800 Greenwood 11.25" Firm Mattress

1524

Starting at

$480⁹⁹

$1000⁹⁹

$520 OFF

Firm Comfort, best for

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

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

12 Inch Full Size Mattress

Choosing a 12 inch full size mattress is an investment in comfort, support, and restful sleep, tailored for those who value that extra layer of plushness and stability. As the summer winds down and the days begin to hint at cooler nights, there’s something inviting about settling into a mattress that offers both ample cushioning and reliable support. The 12 inch profile is especially popular among sleepers who appreciate a balance between contouring comfort and a firm, supportive base—ideal for adults, teens, or even growing children transitioning to their first “big kid” bed. Whether you’re outfitting a guest room for visiting friends and family during the holidays, upgrading a college student’s apartment, or simply refreshing your own bedroom, a mattress firm full size bed can transform the sleep experience. The full size offers generous room for solo sleepers to stretch out, while still fitting comfortably in most bedrooms, making it a versatile choice for a variety of living spaces.

The rise of the 12 full size mattress in a box has made it easier than ever to bring home a luxurious sleep solution without the hassle of traditional delivery. Unboxing a new mattress is a bit like unwrapping a gift, with the foam layers expanding to reveal a substantial, inviting sleep surface. Many appreciate the way a full size mattress firm enough to provide spinal alignment can still cradle pressure points, making it suitable for side, back, and combination sleepers alike. If you’re considering a thoughtful gift for a recent graduate, newlyweds, or someone setting up their first apartment, a 12 inch full size mattress is both practical and indulgent—a present that delivers comfort night after night. The added height of a 12 inch mattress also makes getting in and out of bed easier, which can be especially helpful for older adults or anyone with mobility concerns. And while the phrase “12 foot mattress” might be a playful exaggeration, what you do get is a sleep surface with enough depth to house multiple comfort and support layers, enhancing both durability and the overall sleep experience.

As you explore your options, consider how a mattress firm full size mattress can adapt to your lifestyle—whether it’s supporting late-night reading, weekend lounging, or simply providing a cozy spot to unwind after a long day. The full size format is spacious enough for couples who don’t mind close quarters, or for solo sleepers who enjoy the freedom to sprawl. If you’re comparing different thicknesses, you might also want to look at alternatives like the 10 Inch Full Mattress to find the perfect fit for your needs and preferences. Ultimately, the right 12 inch full size mattress will offer you the comfort, support, and peace of mind to enjoy restful nights and energized mornings, season after season.