Best Full XL Size Mattresses of 2026

Find more room to stretch out with the best full XL size mattresses, ranked by customer review ratings to help you compare with confidence. A full XL mattress measures 54 inches wide by 80 inches long, offering five extra inches of length compared with a standard full—an option worth considering for taller sleepers who want to keep their sleep space compact. Explore customer favorites to find the comfort and support that fit your needs.

What to look for in full XL mattresses

Finding the best full XL mattress starts with matching its dimensions, comfort and support to your space and sleep needs

1. Size And Fit

A full XL mattress typically measures 54 inches wide by 80 inches long, offering five more inches of length than a standard full. Measure your room and doorways to make sure the mattress fits your space.

2. Sleep Position And Firmness

Side sleepers may prefer more cushioning around their shoulders and hips, while back and stomach sleepers often benefit from a firmer feel. Consider your body type and preferred sleep position when comparing comfort levels.

3. Materials And Support

Memory foam contours to your body, while innerspring and hybrid mattresses generally offer a more responsive feel. Look for a combination of cushioning and support that helps keep your spine comfortably aligned.

4. Base And Bedding Compatibility

Check that your bed frame, foundation and fitted sheets accommodate full XL dimensions rather than standard full. Review the mattress manufacturer's base requirements and any trial or return terms before choosing.

Kingsdown Crown Imperial 15" Plush Mattress

A luxurious, handcrafted plush mattress with motion separation, pressure relief, and adjustable base compatibility.

Plush Comfort, best for

Side Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

Starting at

$4999⁰⁰

FREE ADJUSTABLE BASE ³ with code ELEVATE

Beautyrest BR800 11.25" Firm Mattress

A firm full XL mattress with Beautyrest Pocketed Coil springs, DualCool Technology, and Gel Memory Foam Lumbar Support.

2250

Firm Comfort, best for

Back, Stomach Sleepers
Toss and Turn
Pain
Bed Partner
Temperature

Starting at

$999⁹⁹

FREE ADJUSTABLE BASE ³ with code ELEVATE

Sleepy's Basic Innerspring Firm Mattress

A firm full XL innerspring mattress with over 440 coils and a quilted foam layer for comfort.

8723

Firm Comfort, best for

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

Starting at

$249⁹⁹

Kingsdown Crown Imperial 16" Plush Euro Top Mattress

A plush, handcrafted mattress with motion separation, pressure relief, and adjustable base compatibility.

178

Plush Comfort, best for

Side Sleepers
Pain
Bed Partner
Temperature
Toss and Turn

Starting at

$4499⁰⁰

$5999⁰⁰

$1500 OFF

FREE ADJUSTABLE BASE ³ with code ELEVATE

Beautyrest BR800 Greenwood 13.5" Medium Pillow Top Mattress

A medium pillow top mattress with breathable memory foam, cooling technology, and motion-isolating pocketed coils.

1891

Medium Comfort, best for

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

Starting at

$589⁹⁹

$1219⁹⁹

$630 OFF

FREE ADJUSTABLE BASE ³ with code ELEVATE

Beautyrest BR800 Greenwood 12" Plush Euro Top Mattress

A plush Euro top mattress with pocketed coils, cooling foams, and gel memory foam lumbar support.

752

Plush Comfort, best for

Side Sleepers
Bed Partner
Toss and Turn
Temperature
Pain

Starting at

$469⁹⁹

$1099⁹⁹

$630 OFF

FREE ADJUSTABLE BASE ³ with code ELEVATE

Beautyrest BR800 12" Plush Euro Top Mattress

A plush euro top mattress with Beautyrest Pocketed Coil springs for personalized support and motion isolation.

749

Plush Comfort, best for

Side Sleepers
Toss and Turn
Pain
Bed Partner
Temperature

Starting at

$1099⁹⁹

FREE ADJUSTABLE BASE ³ with code ELEVATE

Beautyrest BR800 Greenwood 13.5" Plush Pillow Top Mattress

A plush pillow top mattress with breathable GelTouch Foam, moisture-wicking technology, and supportive pocketed coils.

2816

Plush Comfort, best for

Side Sleepers
Bed Partner
Toss and Turn
Temperature
Pain

Starting at

$589⁹⁹

$1219⁹⁹

$630 OFF

FREE ADJUSTABLE BASE ³ with code ELEVATE

Beautyrest BR800 Greenwood 11.5" Medium Firm Mattress

A medium firm mattress with AirCool Foam and DualCool Technology for cool, supportive, undisturbed sleep.

3235

Medium Comfort, best for

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

Starting at

$459⁹⁹

$999⁹⁹

$540 OFF

Beautyrest BR800 Greenwood 10.5" Firm Mattress

A firm mattress with pocketed coils, AirCool foam, and antimicrobial technology for cool, supportive sleep.

3409

Firm Comfort, best for

Back, Stomach Sleepers
Bed Partner
Toss and Turn
Temperature
Pain

Starting at

$439⁹⁹

$999⁹⁹

$560 OFF

What mattress types can I choose from? + -

Common mattress types include memory foam, latex, innerspring and hybrid, which combines coils with foam or latex comfort layers

What does mattress firmness describe? + -

Firmness describes how soft or firm a mattress feels when you lie down, with options ranging from plush cushioning to a more substantial, less cushioned surface

How do memory foam and latex mattresses differ in feel? + -

Memory foam typically contours more closely and responds slowly to movement, while latex generally has a springier feel and responds more quickly

What is the difference between a pillow top and a tight top mattress? + -

A pillow top has a distinct layer of cushioning sewn onto the top, while a tight top has a more streamlined surface without that added section

How should I care for a mattress cover? + -

Check the care label before cleaning, since some covers are removable and machine washable while others require spot cleaning