Shop

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.

Ship to:

Enter your zip code to show local inventory and delivery availability.

Refine

Size
Comfort Level
Brand
Featured
Mattress Type
Clear Filters
Home

Full Size Mattresses

254 Items
254 Items

Online Only

Firm

Online Only

Firm

Beautyrest World Class Level Three Hybrid Firm

from $1,299.99

Online Only

Soft

Online Only

Soft

Beautyrest World Class Level Four Plush

from $1,599.99

Online Only

Soft

Online Only

Soft

Beautyrest World Class Level Three Plush

from $1,299.99

Medium Soft

Medium Soft

King Koil Paradise Valley Medium Plush

from $2,399.99

get it Delivery date contingent on available inventory

Medium

Medium

King Koil Xtended Life Topaz Hybrid

from $2,699.99

get it Delivery date contingent on available inventory

Online Only

Firm

Online Only

Firm

Beautyrest Black Series Four Hybrid Firm Apex Top

from $4,649.99

Online Only

Soft

Online Only

Soft

Beautyrest Black Series Three Hybrid Plush

from $3,149.99

Online Only

Firm

Online Only

Firm

Beautyrest Black Series Three Hybrid Firm

from $3,149.99

Online Only

Firm

Online Only

Firm

Beautyrest Black Series Two Hybrid Firm

from $2,749.99

get it Delivery date contingent on available inventory

Online Only

Firm

Online Only

Firm

Beautyrest Black Series One Hybrid Firm

from $1,649.99

Online Only

Soft

Online Only

Soft

Beautyrest Black Series One Hybrid Plush

from $1,849.99

Online Only

Soft

Online Only

Soft

Beautyrest Black Series Four Plush Pillow Top

from $4,649.00

Online Only

Medium

Online Only

Medium

Beautyrest Black Series Four Medium Pillow Top

from $4,649.00

Online Only

Medium

Online Only

Medium

Beautyrest Black Series Three Medium

from $3,249.00

Online Only

Firm

Online Only

Firm

Beautyrest Black Series Three Firm

from $3,249.00

Online Only

Extra Firm

Online Only

Extra Firm

Beautyrest Black Series Three Extra Firm

from $3,249.00

Online Only

Medium

Online Only

Medium

Beautyrest Black Series Three Medium Pillow Top

from $3,649.00

Online Only

Soft

Online Only

Soft

Beautyrest Black Series Two Plush Pillow Top

from $2,749.00

Online Only

Soft

Online Only

Soft

Beautyrest Black Series Two Plush

from $2,549.00

Online Only

Medium

Online Only

Medium

Beautyrest Black Series Two Medium

from $2,549.00

Online Only

Medium

Online Only

Medium

Beautyrest Black Series One Medium Pillow Top

from $2,249.00

Online Only

Firm

Online Only

Firm

Beautyrest Black Series One Firm Pillow Top

from $2,249.00

Online Only

Soft

Online Only

Soft

Beautyrest Black Series One Plush

from $1,949.99

get it Delivery date contingent on available inventory

Online Only

Medium

Online Only

Medium

Beautyrest Black Series One Medium

from $1,949.99

Soft

Soft

Kingsdown Youngsford Plush Euro Top

from $3,829.00

get it Delivery date contingent on available inventory

Firm

Firm

Kingsdown Yatesdale Firm

from $3,329.00

Firm

Firm

Kingsdown Wavendon Firm Euro Top

from $3,129.00

get it Delivery date contingent on available inventory

Soft

Soft

Kingsdown Westpine Plush

from $3,029.00

get it Delivery date contingent on available inventory

Firm

Firm

Kingsdown Treybrooke Firm Euro Top

from $2,629.00

get it Delivery date contingent on available inventory

Soft

Soft

Kingsdown Keybridge Plush

from $2,429.00

get it Delivery date contingent on available inventory

On Sale

Firm

On Sale

Firm

Helix Premier Firm Euro Top2

from $1,998.75

$1,499.00

get it Delivery date contingent on available inventory

Online Only

Soft

Online Only

Soft

Sealy Golden Spirits Soft Tight Top

from $784.00

$609.00

Online Only

Soft

Online Only

Soft

Beautyrest Black Series Four Hybrid Plush Apex Top

from $4,649.99

Medium

Medium

Beautyrest Black Series Two Hybrid Medium Apex Top

from $3,049.99

get it Delivery date contingent on available inventory

Firm

Firm

Beautyrest Black Series Three Firm Pillow Top

from $3,649.99

get it Delivery date contingent on available inventory

Soft

Soft

Beautyrest Black Series One Plush Pillow Top

from $2,249.99

get it Delivery date contingent on available inventory

Online Only

Medium

Online Only

Medium

Avocado Eco Kids Mattress

from $699.00

$559.00

Online Only

Soft

Online Only

Soft

Sealy Golden Elegance C Bay Soft

from $1,384.99

$884.99

Online Only

Firm

Online Only

Firm

Sealy Golden Elegance C Bay Ultra Firm

from $1,384.99

$821.77

get it Delivery date contingent on available inventory

Online Only

Soft

Online Only

Soft

Sealy Golden Elegance Ella Bay Soft Euro Pillow Top

from $1,184.99

$784.99

Online Only

Soft

Online Only

Soft

Sealy Golden Elegance Ella Bay Soft

from $1,084.99

$684.99

Online Only

Medium

Online Only

Medium

Sealy Golden Elegance Aris Medium

from $1,184.99

$784.99

Online Only

Soft

Online Only

Soft

Sealy Golden Elegance Fiji Palms Soft Euro Pillow Top

from $924.99

$624.99

Online Only

Soft

Online Only

Soft

Serta Blissful Excellence Hastings Hybrid Plush

from $1,499.00

$699.00

Online Only

Soft

Online Only

Soft

Serta Blissful Excellence Enchanting Skies Plush Pillow Top

from $1,099.00

$659.00

Online Only

Soft

Online Only

Soft

Kingsdown Mode Plush

from $879.99

$579.99

Online Only

Firm

Online Only

Firm

Kingsdown Mode Firm

from $879.99

$579.99

On Sale

Soft

On Sale

Soft

Cloudtech Cirrus Smooth Top Plush

from $2,199.99

$1,499.00

get it Delivery date contingent on available inventory

Soft

Soft

King Koil Grayhawk Bliss Top Ultra Plush

from $3,599.99

get it Delivery date contingent on available inventory

Extra Firm

Extra Firm

King Koil Whisper Rock Extra Firm

from $2,099.99

get it Delivery date contingent on available inventory

Firm

Firm

King Koil Silver Leaf Firm Euro Top

from $2,599.99

get it Delivery date contingent on available inventory

Firm

Firm

King Koil Palo Verde TrimLine Firm

from $2,899.99

get it Delivery date contingent on available inventory

Soft

Soft

King Koil Palo Verde TrimLine Plush

from $2,899.99

get it Delivery date contingent on available inventory

Firm

Firm

Kingsdown Temp IQ Hybrid Firm

from $2,349.00

get it Delivery date contingent on available inventory

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.