Full Size Mattress for Adults

Finding the right Full Size Mattress for Adults can make it easier to create a comfortable, inviting bedroom. Explore full size mattresses at Mattress Firm to compare options by comfort preference, sleep style and budget, then choose the mattress that fits your space and supports better zzz's.

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Beautyrest BR800 12" Plush Euro Top Mattress

735

Starting at

$1099⁹⁹

Plush Comfort, best for

Side Sleepers
Toss and Turn
Pain
Bed Partner
Temperature

Sleepy's By Sealy Memory Foam Medium Mattress

3474

Starting at

$779⁹⁹

Medium Comfort, best for

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

Beautyrest PressureSmart 2.0 Firm 11" Mattress

Starting at

$749⁹⁹

$1499⁹⁹

$750 OFF

Firm Comfort, best for

Back, Stomach Sleepers
Temperature
Bed Partner
Pain
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

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 Basic Innerspring Firm Mattress

8676

Starting at

$249⁹⁹

Firm Comfort, best for

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

Beautyrest PressureSmart 2.0 Plush 11.75" Mattress

6251

Starting at

$774⁹⁹

$1549⁹⁹

$775 OFF

Plush Comfort, best for

Side Sleepers
Temperature
Bed Partner
Pain
Toss and Turn

FREE ADJUSTABLE BASE ³ with code ELEVATE

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

Sleepy's By Sealy Memory Foam Plush Mattress

2776

Starting at

$879⁹⁹

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

Serta Perfect Sleeper Charlotte 2.0 Medium Euro Top Mattress

2615

Starting at

$1099⁹⁹

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 Basic Foam Mattress

1412

Starting at

$449⁹⁹

Firm Comfort, best for

Back, Stomach Sleepers
Pain
Temperature
Bed Partner
Toss and Turn

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

Beautyrest BR800 13.5" Plush Pillow Top Mattress

2784

Starting at

$1179⁹⁹

Plush Comfort, best for

Side Sleepers
Toss and Turn
Pain
Bed Partner
Temperature

FREE ADJUSTABLE BASE ³ with code ELEVATE

Beautyrest Silver BRS900 11.75" Extra Firm Mattress

3296

Starting at

$1359⁹⁹

Extra Firm Comfort, best for

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

FREE ADJUSTABLE BASE ³ with code ELEVATE

A full size mattress can be an excellent choice for adults who want more sleeping space than a twin mattress without the larger footprint of a queen or king. Measuring approximately 54 inches wide by 75 inches long, a full mattress offers comfortable room for one adult to stretch out while fitting easily in guest rooms, studio apartments, bedrooms with limited floor space and multipurpose spaces. Single sleepers who prefer extra room, teenagers transitioning to an adult-size bed and couples with a smaller bedroom may find a full size bed practical and comfortable. Choosing the right full size mattress also depends on sleep position, body type and personal comfort preferences. Side sleepers often benefit from pressure-relieving memory foam or hybrid construction, while back and combination sleepers may prefer a mattress with responsive support and balanced firmness. Shopping for a full mattress for adults involves more than comparing dimensions. Look for supportive materials that help maintain proper spinal alignment, breathable construction for temperature regulation and durable comfort layers designed for everyday use. A full size mattress is also available in a range of options, including memory foam, innerspring and hybrid mattresses, so sleepers can select the feel and support that best match their needs. Consider the bed frame, foundation and available bedroom space before purchasing, and confirm that sheets, mattress protectors and other bedding are made for a full size bed. For adults who sleep with a partner, a full mattress may feel more compact than a queen mattress, but it can be a smart space-saving solution for occasional sharing or smaller rooms. Explore full size mattresses with the comfort, support and features that make it easier to get better zzz's night after night.

What mattress materials are available for adults? + -

Adults can choose from memory foam, innerspring, hybrid and latex mattresses. Each material offers a different feel, including contouring, responsive support, airflow and bounce.

How should adults choose a mattress firmness? + -

Consider your preferred feel, sleep position and whether you share the bed. Side sleepers often prefer a plusher surface, while back and stomach sleepers may enjoy a firmer feel.

Are hybrid mattresses a good option for adults? + -

Hybrid mattresses combine coils with foam or other comfort materials. They can provide a balance of support, cushioning and responsiveness for adults who want features from both innerspring and foam designs.

What type of mattress is best for couples? + -

Couples may want to consider a mattress with motion isolation, edge support and a feel that suits both sleepers. Hybrid and foam designs are popular options, depending on individual comfort preferences.

How can adults keep a mattress comfortable over time? + -

Use a supportive foundation, rotate the mattress if the manufacturer recommends it and protect the surface with a suitable mattress protector. Follow the care instructions for the specific mattress materials.