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Foam Mattress
Price: $1,245 Sale Price: $930
25% OFF


Foam Mattress
Price: $1,245 Sale Price: $930
25% OFF
5 out of 5 Customer Rating
Make it a bundle: You save $173!
Waterproof Mattress Protector
Waterproof Mattress Protector
Guards against dirt, spills, and normal wear and tear.
The Foundation
The Foundation
Created to support your mattress. Set it up in minutes with easy, no-tool assembly.
Waterproof Mattress Protector
The Foundation
Waterproof Mattress Protector and The Foundation. You save $173!
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In-stock, ships within 1-2 days | Free shipping & returns
Price: $1,245 Sale Price: $930

Try it in a store near you
$475 upgrade
  • Upgrade to Hybrid Technology
  • Added Zoned Support™
  • Responsive Medium Feel

Inside the One

Our signature all foam mattress designed with a responsive yet supportive medium-firm feel is perfect for any sleep style.

  • RESPONSIVE FEEL: A supportive medium-firm feel with the perfect bit of bounce.
  • BREATHABLE FOAMS: Breathe Flex Foam allows airflow to soothe you to sleep.
  • PRESSURE RELIEVING: Align Memory Foam cradles your body to help you stay asleep.
  • SUPPORTIVE CORE: A firm Casper Core prevents sinking and sagging.

While the Original & The Casper has gone to bed, you can experience the latest in cutting-edge coziness with our new mattress, the One.

Don't Lose Sleep


38" W x 75" L x 11" H x 42lbs

Twin XL

38" W x 80" L x 11" H x 42lbs


53" W x 75" L x 11" H x 56lbs


60" W x 80" L x 11" H x 66lbs


76" W x 80" L x 11" H x 85lbs

California King

72" W x 84" L x 11" H x 83lbs

  • Top layer of breathable polyurethane foam.
  • Second layer of memory foam.
  • Durable base of polyurethane foam.

Free shipping and free returns*

*Additional shipping fees apply to Alaska and Hawaii. Terms and Conditions apply.

Subject to 10-year Limited Mattress Warranty. Learn More

  • Back and stomach sleepers.
  • The no-brainer mattress choice.

One features an all foam construction with a medium feel, making it perfect for any sleep style.

Got questions?

Our friendly Sleep Specialists are here to help. Give us a call now or visit your local store.

Sleep Easier

Cozy Cover

A buttery soft and airy knit blend helps make your mattress even cozier.

Sleep Deeper

Breathe Flex Foam

A responsive and breathable open cell foam soothes you to sleep with the perfect bit of bounce.

Sleep All Night

Align Memory Foam

Pressure-relieving memory foam cradles your body to help you stay asleep. 

How does this mattress compare?

Not every mattress is for everyone. Take a look at our other models to see which is the best for you.



Size: Queen
Price: $1,245 Sale Price: $930


Size: Queen
Price: $1,875 Sale Price: $1,405
Mattress Feel
We know that every body is unique, so we design our mattresses with a range of firmnesses.
Ergonomic Support
Support where you need it most. Firmer foam under your hips, waist, and lower back and precisely cut channels designed to help align your spine.
Zoned Support
Cooling & Breathability
Keep cool all night with breathable foams and Snow Technology.
Breathe Flex Foam
Breathe Flex Foam
Mattress Construction
We offer both soothing all-foam and responsive hybrid constructions to make sure every sleeper gets their favorite feel.

Foam Mattress


Hybrid Mattress

Mattress Layers
Every Casper mattress is engineered with features and layers you need for better sleep.





The no-brainer mattress choice.

Ratings & Reviews

21996 Reviews
4.5 out of 5.0

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  • (5 Stars)

    Great mattress, great price!

    Bought two of these mattresses to use with Caper adjustable bed frames. Mattresses are light, comfortable, firm but not too firm, and really nice to sleep on. Great for watching TV in bed, too (thanks to the adjustable frame, of course). Overall, would recommend. No real downside to this mattress other than having to give ir time to be fully ready after unpacking. We don't have a lot of extra space here for that, but we found a way to make it work.

    Product: Casper Mattress 2023

    Disclaimer: This review is of a mattress of a comparable feel.

  • (5 Stars)

    Great Mattress for Great Sleep

    When my husband and I first laid down on this mattress we were honestly concerned that it was going to be too firm, but we’re approaching almost two weeks of ownership and I don’t think either of us has slept this well in years. I have chronic pain that focuses on my back and hips and I’m used to waking up as sore as I went to bed, but I’m actually seeing some moderate improvement in the morning. Moderate improvement might not sound like a miracle to most people, but it feels like one to me. We’re very happy with our purchase, and would definitely buy another mattress from Casper.

    Product: One

    Disclaimer: This review is of a mattress of a comparable feel.

  • (5 Stars)

    Fantastic mattress!

    The One Mattress is fantastic! This is my second Casper mattress and I can't wait to recommend it to my friends!

    Product: One

    Disclaimer: This review is of a mattress of a comparable feel.

  • (5 Stars)

    Best bed yet

    I actually had to hunt down the AirBNB we stayed at to find the mattress. We had tried 3 others and they couldn't compete. Very firm bed but as a side sleeper, it's just as great for me as my stomach sleeping husband. I know reviews state otherwise, but not having my hip sink 3-6 inches while the mattress stays level and firm is amazing. I'd pay double for this bed.

    Product: One

    Disclaimer: This review is of a mattress of a comparable feel.

  • (5 Stars)

    Foam is great!

    I love me all foam mattress. Simple as. I've been sleeping on Casper memory foam for 8 years now and decided to get a second mattress from them. While firm, it does have a decent amount of give to it that feels like it cradles you while you sleep. Very comfortable, even if sleeping on your side.

    Product: One

    Disclaimer: This review is of a mattress of a comparable feel.

Showing 1 to 5 of 21,996 results

Frequently asked

All of our mattresses are specifically designed to sleep cool. We run thermal imaging tests and sweat tests to make sure our mattresses feel nice and breezy throughout the night to keep you comfortable.

If sleeping hot is a challenge for you, Snow Technology is our most advanced solution to nighttime overheating. The combination of HeatDelete™ Bands, Phase Change Material, and cooling Snow Cover keep you comfortably cool from the moment you crawl into bed.

The “One” is the firmest mattress in our collection. It is an all-foam mattress made with Breath Flex Foam, Align Memory Foam, and a Casper Core for those seeking the best memory foam mattress experience at an affordable price. The One is firmer than our previous value model, The Casper.

If you loved the Casper you'll love the upgraded One. This all-in-one sleep solution is slightly firmer but still has the signature Casper feel. The all foam mattress is made with Breath Flex Foam, Align Memory Foam, and a Casper Core, making it an excellent choice for anyone looking for a memory foam mattress upgrade.

Casper mattresses are designed to work on a firm, solid surface like our foundation, platform, or adjustable bed frame. Having the correct support ensures the performance and longevity of memory foam mattresses.

For slatted frames, we recommend using bed slats that are flat (not bowed), wooden, and no more than 4 inches apart.

We do! For those who aren’t familiar, a split king basically means the frame comes in two parts. With an adjustable base, the two parts are able to work separately or sync together — so you can use the base with two twin XL mattresses or a single king mattress.

Our Cal king adjustable base is also split, but can only be used with our Cal king sized mattress.

A mattress in a box is a mattress that’s compressed in an air-sealed bag and rolled tight so that it can fit into a box that’s easier to maneuver than a traditional mattress. Allowing you the flexibility and convenience of picking your mattress online and having it easily delivered to your door.

When you receive the mattress, all you’ll need to do is pull it out of its packaging, lay it flat on your bed frame or floor, and let it expand.

Foam and hybrid mattresses can be slept on almost right away but may take up to 48 hours to expand fully. Our Snow mattresses are primarily made with memory foam and can take up to 72 hours to expand fully.