Sleeping Foundations Full

Sleeping Foundations Full offers a selection of foundations designed to complement full-size mattresses and support a comfortable bedroom setup. Explore options to find the right foundation for your space, mattress and sleep preferences.

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Sleepy's Basic Adjustable Base

Starting at

$299⁹⁹

FREE with select mattress purchase³.

Sleepy's Signature Adjustable Base

Starting at

$849⁹⁹

Save $299 with qualifying mattress purchase. Code: ELEVATE

Sleepy's Basic Box Spring Foundation

10608

Starting at

$219⁹⁹

Sleepy's By Sealy Memory Foam Medium Mattress

3474

Starting at

$479⁹⁹

$779⁹⁹

$300 OFF

Medium Comfort, best for

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

Sleepy's Basic Memory Foam Firm Mattress

3213

Starting at

$239⁷⁷

$799⁹⁹

$560 OFF

Firm Comfort, best for

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

Sleepy's Signature Platform Frame

Starting at

$149⁹⁹

Sleepy's Basic Innerspring Firm Mattress

8676

Starting at

$249⁹⁹

Firm Comfort, best for

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

Sleepy's By Sealy Medium Euro Top Mattress

4439

Starting at

$224⁹⁹

$449⁹⁹

$225 OFF

Medium Comfort, best for

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

Sealy Ease Adjustable Base

5046

Starting at

$1049⁰⁰

Sleepy's Universal Box Spring Foundation

6346

Starting at

$249⁹⁹

Sleepy's By Sealy Memory Foam Plush Mattress

2776

Starting at

$579⁹⁹

$879⁹⁹

$300 OFF

Plush Comfort, best for

Side Sleepers
Pain
Bed Partner
Toss and Turn
Temperature

FREE ADJUSTABLE BASE ³ with code ELEVATE

Tempur-Pedic TEMPUR-Ergo 3.0 Adjustable Base

3704

Starting at

$1599⁰⁰

$1699⁰⁰

$100 OFF

Sleepy's Bunkie Board

3307

Starting at

$99⁹⁹

Serta Perfect Sleeper Charlotte 2.0 Medium Euro Top Mattress

2615

Starting at

$639⁹⁹

$1099⁹⁹

$460 OFF

Medium Comfort, best for

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

FREE ADJUSTABLE BASE ³ with code ELEVATE

Sleepy's Rest Medium Innerspring Mattress

7001

Starting at

$261⁰⁰

$949⁹⁹

$689 OFF

Medium Comfort, best for

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

Sleepy's Rest Firm 2.0 Innerspring Mattress

7001

Starting at

$449⁹⁹

Firm Comfort, best for

Back, Stomach Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

Sleepy's Deluxe Adjustable Base

Starting at

$1149⁹⁹

Save $299 with qualifying mattress purchase. Code: ELEVATE

Sleepy's Basic Foam Mattress

1412

Starting at

$179⁹⁹

$449⁹⁹

$270 OFF

Firm Comfort, best for

Back, Stomach Sleepers
Pain
Temperature
Bed Partner
Toss and Turn

Tempur-Pedic Charcoal Box Spring Foundation

1346

Starting at

$380⁰⁰

Serta Perfect Sleeper Sleep Excellence Medium PillowTop Mattress

1433

Starting at

$1579⁹⁹

Medium Comfort, best for

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

FREE ADJUSTABLE BASE ³ with code ELEVATE

Stearns & Foster SX4 Box Spring Foundation

718

Starting at

$315⁰⁰

Beautyrest BR800 13.5" Plush Pillow Top Mattress

2784

Starting at

$589⁹⁹

$1179⁹⁹

$590 OFF

Plush Comfort, best for

Side Sleepers
Toss and Turn
Pain
Bed Partner
Temperature

FREE ADJUSTABLE BASE ³ with code ELEVATE

Tempur-Pedic TEMPUR-Ergo Smart Adjustable Base

986

Starting at

$1999⁰⁰

$2199⁰⁰

$200 OFF

Calm app 3-month free trial with mattress purchase & registration

Beautyrest Silver BRS900 11.75" Extra Firm Mattress

3296

Starting at

$559⁹⁹

$1359⁹⁹

$800 OFF

Extra Firm Comfort, best for

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

FREE ADJUSTABLE BASE ³ with code ELEVATE

Beautyrest BR800 11.25" Firm Mattress

2233

Starting at

$469⁹⁹

$959⁹⁹

$490 OFF

Firm Comfort, best for

Back, Stomach Sleepers
Toss and Turn
Pain
Bed Partner
Temperature

FREE ADJUSTABLE BASE ³ with code ELEVATE

Beautyrest Black 24 Box Spring Foundation

254

Starting at

$300⁰⁰

A full sleeping foundation provides a stable, supportive base for a full-size mattress, which typically measures 54 inches wide by 75 inches long. Designed for sleepers who want more room than a twin mattress without the added width of a queen, a full foundation can help create a comfortable sleep setup for one person, couples who prefer close quarters, guest rooms and smaller bedrooms. Full bed foundations are available in several styles, including traditional box springs, low-profile foundations, platform foundations and adjustable bases. Choosing the right foundation can help improve mattress support, promote a more even sleep surface and raise the mattress to a comfortable height for getting in and out of bed. A full mattress foundation should match the mattress type and the bed frame for the best fit and long-term performance. Memory foam, latex and hybrid mattresses typically need a solid, evenly spaced support surface, while some innerspring mattresses may be compatible with a traditional box spring or full-size foundation. Check the mattress warranty and the foundation’s weight capacity before buying, and confirm that the dimensions fit your full bed frame, headboard and bedroom layout. A sturdy full foundation can also help reduce motion transfer, prevent uneven wear and provide dependable support night after night. Explore full-size foundations at Mattress Firm to find the right foundation for your mattress, comfort preferences and sleep space.

What is a sleeping foundation? + -

A sleeping foundation is a supportive base designed to sit beneath a mattress. Foundations may feature a solid surface, closely spaced slats or a combination of materials, depending on the design.

What types of sleeping foundations are available? + -

Common types include platform foundations, slatted foundations, adjustable bases and traditional box foundations. Each style has its own construction and design features.

What materials are used to make sleeping foundations? + -

Sleeping foundations may be made with wood, metal, upholstery, fabric or a combination of materials. The construction varies by foundation style and brand.

Can a sleeping foundation be used with different bedroom styles? + -

Yes. Sleeping foundations are available in a range of finishes and designs, from streamlined and modern to upholstered and traditional, making it easier to coordinate with your bedroom décor.

How should I care for a sleeping foundation? + -

Follow the care instructions provided with your foundation. In general, keep the surface clean and dry, inspect visible components periodically and avoid modifying the foundation.