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Full Size Mattresses

Full size mattresses give an adult plenty of room and also allow for children to grow into the bed, saving money on replacing mattresses year after year. Keep in mind, Full mattresses can often be too short in length for the average sized man.

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Full Size Mattresses

253 Items
253 Items

On Sale

Soft

On Sale

Soft

Nectar Foam Ultra 5.1

from $1,999.00

$1,499.00

get it Delivery date contingent on available inventory

Online Only

Medium

Online Only

Medium

Avocado Eco Kids Mattress

from $799.00

$719.00

get it Delivery date contingent on available inventory

Online Only

Firm

Online Only

Firm

Sealy Golden Elegance Hybrid Palms Firm

from $924.99

$300 Gift

Medium

$300 Gift

Medium

TEMPUR-Adapt Medium Hybrid 2.0

from $2,099.00

get it Delivery date contingent on available inventory

Online Only

Firm

Online Only

Firm

Kingsdown Mode Firm Euro Top

from $1,129.99

Firm

Firm

Purple RestorePremier Firm

from $3,799.00

get it Delivery date contingent on available inventory

Extra Firm

Extra Firm

Stearns & Foster Estate – Ultra Firm Tight Top

from $2,399.00

get it Delivery date contingent on available inventory

Online Only

Medium

Online Only

Medium

Serta Perfect Sleeper Morro Bay V2 Medium

from $999.99

$699.99

get it Delivery date contingent on available inventory

Medium

Medium

Serta Perfect Sleeper Pacific Palisades V2 Medium

from $899.99

get it Delivery date contingent on available inventory

Firm

Firm

Serta Perfect Sleeper Morro Bay V2 Firm

from $699.99

get it Delivery date contingent on available inventory

Online Only

Soft

Online Only

Soft

Sherwood Salem 12in Plush

from $899.00

get it Delivery date contingent on available inventory

Firm

Firm

King Koil Artisan Luxury Firm Euro Top

from $1,699.99

get it Delivery date contingent on available inventory

Online Only

Soft

Online Only

Soft

Cobalt Plush Pillow Top

from $999.99

Online Only

Soft

Online Only

Soft

Cobalt Plush Euro Top

from $959.99

Online Only

Extra Firm

Online Only

Extra Firm

Cobalt Extra Firm

from $829.99

Online Only

Firm

Online Only

Firm

Sanibel Firm

from $489.99

$289.99

Online Only

Soft

Online Only

Soft

Sealy Posturepedic Elite Spring Albany2 Soft Euro Pillow Top

from $1,919.00

Online Only

Medium

Online Only

Medium

Beautyrest World Class Level Four Hybrid Medium Apex Top

from $1,899.99

Online Only

Medium

Online Only

Medium

Beautyrest World Class Level Four Medium

from $1,699.99

Medium Firm

Medium Firm

Hybrid Infinity Cool Radiance

from $1,499.99

get it Delivery date contingent on available inventory

Firm

Firm

Sealy Posturepedic Albany2 Firm

from $1,719.00

get it Delivery date contingent on available inventory

Soft

Soft

Sealy Posturepedic Pro Gratified2 Soft Euro Pillow Top

from $1,499.00

get it Delivery date contingent on available inventory

Online Only

Soft

Online Only

Soft

Sealy Golden Spirits Soft Euro Pillow Top

from $1,009.00

Online Only

Soft

Online Only

Soft

Sealy Dream Waves Soft Tight Top

from $709.00

$300 Gift

Soft

$300 Gift

Soft

TEMPUR-ProAdapt Soft 2.0

from $2,999.00

get it Delivery date contingent on available inventory

Soft

Soft

Purple Restore Soft

from $2,299.00

Medium

Medium

Serta iSeries NXG 2500 Hybrid Medium

from $2,199.99

get it Delivery date contingent on available inventory

Online Only

Extra Firm

Online Only

Extra Firm

Serta Perfect Sleeper Pacific Palisades V2 Extra Firm

from $1,199.99

Firm

Firm

King Koil Desert Ridge Firm

from $2,399.99

get it Delivery date contingent on available inventory

Online Only

Soft

Online Only

Soft

Sanibel Plush Euro Top

from $614.99

get it Delivery date contingent on available inventory

Online Only

Firm

Online Only

Firm

Sealy Posturepedic Elite Spring Brenham2 Ultra Firm Mattress

from $2,019.00

Online Only

Firm

Online Only

Firm

Sealy Posturepedic Elite HPoint2 Hybrid Firm Mattress

from $2,519.00

Medium Soft

Medium Soft

Cool Encore Standard

from $1,049.99

get it Delivery date contingent on available inventory

Online Only

Soft

Online Only

Soft

Beautyrest Black Series Three Plush Pillow Top

from $3,849.99

On Sale

Firm

On Sale

Firm

Helix Premier Firm Euro Top2

from $2,124.00

$1,699.00

On Sale

Soft

On Sale

Soft

Avocado Luxury Organic Mattress

from $3,999.00

$3,999.00

get it Delivery date contingent on available inventory

Online Only

Soft

Online Only

Soft

Sealy Golden Elegance Ella Bay Soft Euro Pillow Top

from $1,234.99

Online Only

Firm

Online Only

Firm

Sealy Golden Elegance Ella Bay Firm

from $1,134.99

Online Only

Soft

Online Only

Soft

TEMPUR-LuxeAdapt Soft 2.0

from $4,399.00

get it Delivery date contingent on available inventory

Online Only

Soft

Online Only

Soft

Sealy Golden Elegance Fiji Palms Soft Euro Pillow Top

from $974.99

$674.99

Online Only

Soft

Online Only

Soft

Sealy Golden Elegance Fiji Palms Soft

from $949.99

Online Only

Soft

Online Only

Soft

Kingsdown Mode Hybrid Plush

from $1,059.99

Medium

Medium

Serta iSeries NXG 3500 Hybrid Medium

from $2,599.99

get it Delivery date contingent on available inventory

Firm

Firm

Serta iSeries NXG 3500 Hybrid Firm

from $2,599.99

get it Delivery date contingent on available inventory

Soft

Soft

Bungalow Jumbo Pillow Top

from $999.99

get it Delivery date contingent on available inventory

Online Only

Soft

Online Only

Soft

Serta Perfect Sleeper Pacific Palisades V2 Plush Pillow Top

from $1,399.99

Online Only

Soft

Online Only

Soft

Serta Perfect Sleeper La Jolla V2 Plush

from $899.99

Soft

Soft

Serta iSeries NXG 4500 Plush

from $2,899.99

Online Only

Medium

Online Only

Medium

Sherwood Marina Bay Medium Two Sided

from $1,099.00

$799.00

Online Only

Medium

Online Only

Medium

Sherwood Grand Effort Medium

from $649.00

Online Only

Firm

Online Only

Firm

Sherwood Grand Effort Firm

from $649.00

Medium

Medium

Cloudtech Stratus2 Medium Euro Top

from $1,399.99

get it Delivery date contingent on available inventory

Soft

Soft

King Koil Heritage Plush Euro Top

from $1,399.99

get it Delivery date contingent on available inventory

Firm

Firm

King Koil Elevate Firm

from $1,099.99

get it Delivery date contingent on available inventory

Medium

Medium

King Koil Cielo Vista Trimline Medium

from $3,199.99

get it Delivery date contingent on available inventory

Firm

Firm

King Koil Cielo Vista Trimline Firm

from $3,199.99

get it Delivery date contingent on available inventory

Online Only

Firm

Online Only

Firm

Cobalt Firm

from $829.99

$429.99

Online Only

Soft

Online Only

Soft

Cumberland Plush Euro Top

from $649.99

Online Only

Soft

Online Only

Soft

Sealy Posturepedic Elite Spring Brenham2 Soft Euro Top

from $2,219.00

Online Only

Medium

Online Only

Medium

Sealy Posturepedic Elite Spring Brenham2 Medium Mattress

from $2,019.00

Online Only

Medium

Online Only

Medium

Sealy Posturepedic Elite Albany2 Hybrid Medium Mattress

from $1,919.00

get it Delivery date contingent on available inventory

Online Only

Firm

Online Only

Firm

Beautyrest World Class Level Three Hybrid Firm

from $1,399.99

get it Delivery date contingent on available inventory

Online Only

Soft

Online Only

Soft

Beautyrest World Class Level Four Plush

from $1,699.99

get it Delivery date contingent on available inventory

Online Only

Soft

Online Only

Soft

Beautyrest World Class Level Three Plush

from $1,399.99

Medium Soft

Medium Soft

King Koil Paradise Valley Medium Plush

from $2,599.99

get it Delivery date contingent on available inventory

Firm

Firm

King Koil Stone Creek Hybrid Firm

from $2,299.99

get it Delivery date contingent on available inventory

Firm

Firm

Cool Encore Firm

from $1,049.99

get it Delivery date contingent on available inventory

Online Only

Medium

Online Only

Medium

Beautyrest Black Series One Hybrid Medium

from $2,249.99

Online Only

Medium

Online Only

Medium

Beautyrest Black Series Four Medium Pillow Top

from $4,949.99

Online Only

Firm

Online Only

Firm

Beautyrest Black Series Four Firm Pillow Top

from $4,949.99

Online Only

Firm

Online Only

Firm

Beautyrest Black Series Three Firm

from $3,449.99

Online Only

Extra Firm

Online Only

Extra Firm

Beautyrest Black Series Three Extra Firm

from $3,449.99

Online Only

Medium

Online Only

Medium

Beautyrest Black Series Three Medium Pillow Top

from $3,849.99

Firm

Firm

Kingsdown Westpine Firm

from $3,229.00

get it Delivery date contingent on available inventory

Firm

Firm

Kingsdown Keybridge Firm

from $2,529.00

get it Delivery date contingent on available inventory

Firm

Firm

Beautyrest Black Series Three Firm Pillow Top

from $3,849.99

get it Delivery date contingent on available inventory

Medium

Medium

Beautyrest Black Series Two Medium Pillow Top

from $2,949.99

get it Delivery date contingent on available inventory

Soft

Soft

Beautyrest Black Series One Plush Pillow Top

from $2,349.99

get it Delivery date contingent on available inventory

Online Only

Firm

Online Only

Firm

Sealy Golden Elegance Fiji Palms Firm

from $949.99

Online Only

Firm

Online Only

Firm

Kingsdown Mode Firm

from $879.99

Medium

Medium

PranaSleep Karma Elite 3.0 Hybrid Super Cush Mattress

from $2,999.00

get it Delivery date contingent on available inventory

Firm

Firm

PranaSleep Karma Elite 3.0 Hybrid Firm Mattress

from $2,399.00

get it Delivery date contingent on available inventory

Soft

Soft

Serta iSeries NXG 4500 Hybrid Plush

from $2,899.99

Soft

Soft

Serta iSeries NXG 2500 Hybrid Plush

from $2,199.99

Firm

Firm

Serta iSeries NXG 1500 Hybrid Firm

from $1,899.99

Firm

Firm

Bungalow Firm

from $799.99

get it Delivery date contingent on available inventory

Online Only

Soft

Online Only

Soft

Serta Perfect Sleeper Morro Bay V2 Plush

from $999.99

Medium

Medium

Serta iSeries NXG 3500 Medium

from $2,599.99

get it Delivery date contingent on available inventory

Soft

Soft

Serta iSeries NXG 2500 Plush

from $2,199.99

get it Delivery date contingent on available inventory

Firm

Firm

Serta iSeries NXG 1500 Luxury Firm

from $1,899.99

get it Delivery date contingent on available inventory

Online Only

Medium

Online Only

Medium

Helix Birch Natural Mattress

from $1,373.75

$1,099.00

Online Only

Medium

Online Only

Medium

Helix Plus Core Medium Euro Top

from $1,506.25

$1,205.00

Online Only

Soft

Online Only

Soft

Helix Sunset Core Soft Euro Top

from $1,372.50

$1,098.00

Online Only

Firm

Online Only

Firm

Helix Twilight Core Firm Euro Top

from $1,372.50

$1,098.00

Online Only

Soft

Online Only

Soft

Helix Moonlight Core Soft Euro Top

from $1,372.50

$1,098.00

Online Only

Firm

Online Only

Firm

Helix Dawn Core Firm Euro Top

from $1,372.50

$1,098.00

Online Only

Medium

Online Only

Medium

Helix Dusk Core Medium Euro Top

from $1,372.50

$1,098.00

Online Only

Medium

Online Only

Medium

Sherwood Gleason NYX Medium

from $599.00

Online Only

Firm

Online Only

Firm

Sherwood Gleason NYX Firm

from $549.00

$349.00

Online Only

Medium

Online Only

Medium

Sherwood Salem 10in Medium

from $699.00

About Our Full Size Mattresses

Want more sleeping space than a twin bed offers, but you don’t have the room for a queen or king bed? A full mattress is the ideal middle ground. It feels luxurious without overwhelming smaller bedrooms. If you decide it’s right for you, shop the full mattress sales at Sit ‘n Sleep for the best selection at affordable prices. 

What Size is a Full Size Mattress

A full bed mattress, which is sometimes called a double mattress, is typically 54 inches wide and 75 inches long. Compare that to a twin mattress, which is the same length but only 38 inches wide, and you’ll see that you get a lot more sleep space with full size mattresses. If you have any reason to upgrade your twin, whether it’s a child outgrowing their bed or you’re moving to a new bedroom with more space, the full mattress is the next logical step.

Features of Our Full Size Mattresses: Memory Foam, Innerspring, Hybrid

If you’re looking into purchasing a full size mattress, you have several great options to choose from at Sit ’n Sleep. We have a wide range of models from the leading brands so you can find the perfect fit for your needs. 

Our selection features three different types of full size mattresses:

  • Memory Foam: These mattresses conform closely to your body, relieving pressure at the shoulders, hips, and back. They’re especially good for side sleepers or anyone seeking contouring support.
  • Innerspring: Built with responsive coils, these full mattresses offer a bouncy, traditional feel with dependable support. They’re great for those who prefer a mattress with more airflow and firmness.
  • Hybrid: Combining memory foam with innerspring coils, hybrids deliver the best of both worlds with targeted pressure relief, cooling comfort, and sturdy support.

Whether you want the plush cushioning of memory foam, the reliable structure of innersprings, or the balanced performance of a hybrid, Sit ’n Sleep has a full mattress to match your comfort needs.

Benefits of a Full Size Mattress

Full mattresses offer a lot of flexibility, making them an ideal choice for your home. Here are some of the reasons it’s worth looking into a full size mattress:

  • Space-Saving. Full-size mattresses are smaller than king and queen beds, so they're a good option for more compact spaces like guest rooms and small bedrooms, as well as dorm rooms and studio apartments.
  • Cost-Effectiveness. A mattress that’s full size is typically more affordable than larger queens and kings. (And the same is usually true for full size bed frames and bedding.)
  • Comfort. Full size mattresses are wider than a twin or twin XL, which gives single sleepers more room to spread out and relax.
  • Versatility. But full mattresses aren’t just for single sleepers! They’re also roomy enough for a couple, a parent and child, or you and your pet. 

How to Choose the Best Full Size Mattress for You

Deciding to purchase a full size mattress is the first step. The second is determining which one will give you the most comfortable sleep experience. There are many full mattresses from top brands, and you need to consider several factors to help you make the right purchase:

  • Sleeping Position. This is important because it will tell you how firm your mattress should be. If you’re a side sleeper, look for a medium to soft mattress that will cradle your hips and shoulders. If you sleep on your back or stomach, your mattress should be medium to firm.
  • Feel. Typically, higher-quality materials result in a higher comfort level. The type of materials also matters. Coils and latex foam make a bed bouncier, while memory foam and poly foam provide cushioning pressure relief.
  • Motion Isolation. Need a full size mattress for two? It should be engineered to reduce the transfer of movement, so you don’t feel the shift when your partner moves around or gets in and out of bed.
  • Durability. Look for a brand that clearly states what materials were used in the mattress construction. Generally, innerspring mattresses with more support coils offer the most durability.
  • Temperature. If you sleep hot, consider a mattress with cooling technology that will help you sleep more comfortably.

When you’re mattress shopping, you should also think about your body type (taller people may want a mattress that has enough length for their build, for instance), cost, the size of your bedroom, and other personal preferences. When testing mattresses, spend at least 10 minutes on each one and ask the salesperson for a pillow to get an accurate feel for what it will be like to sleep on them.

Full Mattress Set: Complete Your Bed with a Foundation

Want to elevate your sleep experience? Pairing your full size mattress with the right foundation creates a complete sleep system. 
A full mattress set typically includes both the mattress and a box spring (or an alternative foundation such as a platform base or adjustable frame). Together, they provide a sleep experience that feels more supportive and stable than using a mattress alone.

Investing in a full mattress set also improves durability. A proper foundation helps distribute weight evenly and prevents sagging, extending the lifespan of your mattress. With the right foundation, you’ll enjoy enhanced comfort and wake up feeling refreshed for years to come. Our sleep consultants can show you all the options and help you create a sleep system that suits your needs.

Find Your Full Size Mattress at Sit ‘n Sleep

Sit ‘n Sleep offers a variety of full mattresses from top brands, including Hybrid Infinity, Purple, and other major manufacturers of coil and memory foam mattresses, as well as bed frames and platforms. Find the full mattress of your dreams today! For expert assistance, head to our mattress store in Simi Valley or shop conveniently online.