Full Mattresses
Shop award-winning full size foam mattresses for great sleep, at an even greater price.
How big is a full size mattress?
A full size mattress is 75 inches long and 53 inches wide.
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Full
Dimensions: 53” x 75”
The full mattress is a good starter mattress for young adults or recent grads living on their own for the first time. Sometimes called a double, the full is 16 inches wider than a twin at 53 inches wide and 75 inches long. A full is not recommended for couples who like to share the bed with pets or their children or enjoy sleeping like starfish. However, it is a smart choice for guest rooms or couples who enjoy a solid night of snuggles.
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 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.
Who Should Get a Full Size Bed?
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 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 four 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.
Dream
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.
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Dream Max
Our ultimate hybrid mattress with precision-cut foam and encased coils. Engineered with a gooey yet supportive medium-soft feel perfect for any sleep style—especially side sleepers.
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Snow
Our signature cooling hybrid mattress. Designed with soothing foam and encased coils for a supportive, medium feel plus Snow Technology for 12+ hours of cooler sleep.
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Snow Max
Our ultimate cooling hybrid mattress. Engineered with precision-cut foam and encased coils for a breathable and supportive medium-soft feel and Snow Technology for 12+ hours of cooler sleep.
Shop Snow MaxFull 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. 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.
The One
The One was engineered using feedback and data from customers like you. If sleeping on a cloud sounds good, consider this your sweet spot.
Shop The OneMemory 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
How big is a full-size mattress?
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.
Is a full bed big enough for two?
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.
Should I buy a queen or full bed?
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.
What is the difference between a Double and a Full size mattress?
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.
How Casper keeps prices low and quality high
When Casper was founded in 2014, many people were skeptical. Would consumers really buy a standard king size mattress without testing it first? Several years and numerous awards later, we have an answer: It turns out no one likes visiting stuffy mattress showrooms to make high-stakes purchases under the scrutiny of needy salespeople. (Who knew??)
Everyone loves the ease and convenience of buying online from a trusted source, and having a high-quality mattress shipped in a box to their doorstep. And people keep spreading the word that our mattresses deliver unparalleled comfort and support, top-notch construction quality, and high-tech, innovative design.
But the Casper experience isn’t just about quality, trust, and transparency. Our mattresses are a mere fraction of other brands’ prices. That’s because we’ve flipped the mattress industry on its head. By eliminating showrooms and middlemen, we keep our costs low - and pass those savings on directly to you.