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Full Mattresses

Shop award-winning full size mattresses for great sleep, at an even greater price.

15% OFF - ENDS 2/28

Original Hybrid

Full
Price: $1,395 Sale Price: $1,185.75
Firmness: Medium
Our top-rated mattress with enhanced airflow.
Ergonomic Support
Firm Support
Cooling Technology
Advanced Cooling
40% OFF

Nova Hybrid Medium

Full
Price: $2,395 Sale Price: $1,437
Firmness: Medium-Soft
For sleepers looking for the softest comfort.
Ergonomic Support
Firm Support
Cooling Technology
Advanced Cooling
30% OFF - ENDS 2/28

Wave Hybrid

Full
Price: $2,995 Sale Price: $2,096.50
Firmness: Medium
Our most supportive mattress, for max relief.
Ergonomic Support
Firm Support
Cooling Technology
Advanced Cooling
15% OFF - ENDS 2/28

Snow

Full
Price: $1,895 Sale Price: $1,610.75
Firmness: Medium
Enhanced comfort & support with cooling.
Ergonomic Support
Firm Support
Cooling Technology
Advanced Cooling
30% OFF - ENDS 2/28

Wave Hybrid Snow

Full
Price: $3,495 Sale Price: $2,446.50
Firmness: Medium
Max support meets our most advanced cooling.
Ergonomic Support
Firm Support
Cooling Technology
Advanced Cooling
15% OFF - ENDS 2/28

The Casper

Full
Price: $895 Sale Price: $760.75
Firmness: Medium-Firm
For comfortable sleep at a cozy price.
Ergonomic Support
Average Support
Cooling Technology
Advanced Cooling
15% OFF - ENDS 2/28

Original

Full
Price: $1,195 Sale Price: $1,015.75
Firmness: Medium-Firm
Our most popular mattress for better sleep.
Ergonomic Support
Firm Support
Cooling Technology
Advanced Cooling

How big is a Full size mattress?

A Full size mattress is 75 inches long and 53 inches wide.

Mattress sizing chart

Twin Mattress - 38" x 75"

Often found in kid's rooms and studio apartments.

Twin XL Mattress - 38" x 80"

Often found in college dorm rooms and studio apartments

Full Mattress - 53" x 75"

Often found in guest rooms.

Queen Mattress - 60" x 80"

Often found in master bedrooms.

King Mattress - 76" x 80"

Often found in extra large master bedrooms.

California King Mattress - 72" x 84"

Often found in extra large master bedrooms, perfect for gathering the family.

Falling in bed, falling in love - what's the difference?

Need a mattress for a smallish bedroom that still gives you luxurious space to sprawl and stretch? The Casper Original full size mattress is your match made in sleepytime heaven. The full size mattress is roomy, but slightly smaller than Casper's Queen.

Award-winning design for years of sleepy bliss

Our innovative full size mattresses are made from multiple layers of cooling foam. Then they’re squeezed down into a tiny box, which magically appears on your doorstep within a few days.

Free shipping & returns. Great rest guaranteed.

Returns are always free with Casper. And if you don’t love your new twin size mattress, just let us know within 100 days. We’ll pick it up and give you a full refund anytime after the 30-Night Adjustment Period.

Certified safe for you and the environment

Casper's full size mattresses are quality-built from safe, non-toxic materials. All of our foams are CertiPUR-US® certified, meaning they’re made without ozone depleting chemicals and regulated by the Consumer Product Safety Commission Low VOC.

Full Size Size Hybrid Mattresses

Embark on a transformative sleep experience with our full size hybrid mattresses. Combining the deep comfort of memory foam with the springy support of encased springs, these hybrid mattresses offer a delicate balance of snugness and bounce. Each design promotes refreshing airflow to guarantee a chill sleep, making restless nights a thing of the past. Venture below and find the impeccable blend of comfort, support, and innovative cooling features, meticulously designed for your restful slumber.


Which Full Hybrid Mattress bed is right for you?

There are three versions to choose from if you're looking for a Full size mattress. Our hybrid mattress collection combines the pressure relief of our original foam layer with the added lift from resilient springs.

The Wave Hybrid
Wave Hybrid Mattress

The Wave Hybrid

The Wave Hybrid combines the powers of springs, gel and memory foam for the supreme dream state. The five layers give you the most support using innersprings for added lift, and foam and gel for Hyper-Targeted support to provide contouring spine alignment.

The Nova Hybrid
Nova Hybrid Mattress

The Nova Hybrid

Our Nova Hybrid features a luxuriously soft top layer making it our most plush mattress. It features hundreds of resilient springs, added lift, airflow, and a bit of bounce to have you sleeping in the clouds.

The Original Hybrid
Original Hybrid Mattress

The Original Hybrid

Our award winning Original mattress, upgraded. The Original Hybrid combines the best of both worlds with resilient springs as the base for added lift and our proprietary foam for pressure relief. The "just right" feel is now even better.

Full Size Memory Foam Mattresses

Lose yourself in the serenity of our full size memory foam mattresses. Pioneered with cutting-edge memory foam technology, these mattresses are an oasis of relaxation, tailored to gently embrace every curve, ensuring unparalleled spinal alignment and stress relief. Every night becomes an adventure in tranquility as our memory foam mattresses offer the right blend of hugging comfort and refreshing coolness. Dive in below and find the epitome of sleeping luxury, finely tuned to your distinctive comfort needs.


Which Full Memory Foam mattress is right for you?

Want some luxurious extra features for your foam full sized mattress? Or need a more streamlined, affordable version? Whatever your needs, we’ve got you covered. Here are two options:

The Original
The Original

The Original

Our award winning Original king bed was engineered using feedback and data from customers like you. If sleeping on a cloud sounds good, consider this your sweet spot.

The Casper
Element Mattress

The Casper

The Casper delivers Casper's signature "just right" feel (not too firm, not too soft) while keeping you cool and comfortable at a lower price.

Memory Foam vs. Hybrid Full Size Mattresses

Full size memory foam mattresses are celebrated for their unparalleled body-hugging and motion-absorbing properties, making every sleeper feel embraced. They offer a custom-fit sleep experience, adapting impeccably to your body, alleviating pressure points.

Hybrid mattresses, on the other hand, revolutionize sleep by blending the comfort of memory foam with the sturdy support of springs. This dynamic duo promises a mattress that delivers the softness of memory foam while promoting optimal airflow, stellar edge support, and a touch of buoyancy.

Interested in diving deeper into the differences? Learn more from our detailed memory foam vs. hybrid mattresses guide.

Frequently Asked Questions

A standard full-size mattress—also known as a double—is 53 inches wide and 75 inches long. With these dimensions, it’s somewhere between a luxurious twin and a space-conscious queen bed.


With its balanced yet compact size, many people consider a full bed a “starter size,” perfect for young adults, guest rooms, and minimalist couples. For a sleeper looking at a full bed mattress, you’ll want to ensure your bedroom is at least 9 x 9.5 feet to comfortably accommodate the bed.

A full-size mattress can cost anywhere from $300 to $1,500, depending on the quality of the mattress type and special features—cooling technology, structural support, pressure relief, multiple layers, and so on. Before purchasing a new mattress, consider your needs and the firmness level you prefer. Determining whether you want a softer mattress or firmer mattress can help you initially narrow down your search. For a full-size memory foam mattress, the price usually increases to around $600.


The best full-size mattress will accommodate both your budget and heighten your comfort level, providing the best possible sleep experience for its price point. Casper’s Element full-size memory foam mattress comes in at a bargain of only $545.

While snug, a full-size bed can certainly fit two people, especially if your go-to sleeping position is cuddled up together.


However, many couples prefer more space to rest easy. A full bed’s width only grants each partner a little over two feet of personal space. Once you factor in potential children or pets, a full bed becomes crowded quickly. For the best bed size for couples or for a sleeper who needs more space to stay cool and comfortable, a queen size mattress or king size bed mattress will better suit your lifestyle.

The choice between a queen and full bed depends on your home, lifestyle, and sleep needs.


At 53 inches wide and 75 inches long, a full bed is best for solo sleepers, but this compact bed frame size could match other living situations—smaller shared bedrooms or cuddling couples, for example. Most couples prefer more personal space for a good night’s rest, whether that means upgrading to a queen or even a king. Similarly, anyone over six feet tall should opt for a bigger bed to maximize their comfort level, as the 75-inch length of a full bed likely isn’t enough.


A queen bed sits at 60 inches wide and 80 inches long, adding 7 inches in width and 5 inches in height to a full bed’s dimensions. For couples, taller individuals, or restless sleepers who move around at night, that bed frame's extra wiggle room often makes a big difference in comfort. Similarly, a queen bed’s extra space better fits homes with kids or pets that might crawl into bed with you. As long as your bedroom is at least 10 x 10 feet, it can easily accommodate a queen bed and a larger mattress size.

We know it can be confusing‚ but the names can be used interchangeably. We’ve found that Full is the more popular name, so that’s what we use. Rest assured, if you’re looking for a double, then our Full size is for you! See how a Full compares to our other mattress sizes here.

Shop the Original Full Mattress