Find a store

One Foam Mattress

Price: $1,245 Sale Price: $995
20% OFF

One Foam Mattress

Price: $1,245 Sale Price: $995
20% OFF
5 out of 5 Customer Rating
Make it a bundle: You save $174!
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 $174!
You may also like:
Price: $1,245 Sale Price: $995
In-stock, ships within 1-2 days | Free shipping & returns
Upon placing your order with In-Home Delivery, you will be contacted by our delivery partner to schedule an appointment. Deliveries are typically completed within 2-4 weeks of order placement.

Try it in a store near you
$500 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.

Best Solution For: Back and stomach sleepers.

  • 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. 

Compare This Mattress!

Not every mattress is one size fits all, so we are here to help you tell the difference between our models.



Size: Queen
Price: $1,245 Sale Price: $995


Size: Queen
Price: $1,875 Sale Price: $1,495
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

21931 Reviews
4.4 out of 5.0

Review this product

Place a review Adding a review will require a valid email address for verification.
  • (5 Stars)

    I bought the king-size Casper bed and love it. The bed was very easy to unpack. The bed gets more comfortable every night I sleep on it. I love that you can't feel your partner moving at all. I have been recommending the bed to all my friends!

    Product: Original Mattress

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

  • (5 Stars)

    Easy to get out of the box and set up. I purchased this for my motorhome, so don't use it often. I slept on it one night so far. I will be using my motorhome more often as this was the most comfortable sleep ever. I have an $8000 mattress at home and I prefer the Casper.

    Product: Original Mattress

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

  • (5 Stars)

    the mattress our casper replaced was just a couple of years old, cost about $1,200 from a local mattress store and both my wife and i laid on it in the store and decided on it. unfortunately, we quickly grew to hate it. it developed a divot on both sides and my wife was experiencing back pain on a daily basis. we waited until we moved into our new house to replace it and gave the casper a try. i was very surprised at how firm, yet comfortable a mattress that came out of a box is. it sleeps cool but comfortable and my frequent movement over the course of the night no longer wakes my light sleeper of a wife up. as our other mattresses need to be replaced, we plan on replacing them with caspers.

    Product: Original Mattress

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

  • (5 Stars)

    Love it! It’s our second Casper mattress and just as comfortable. Very satisfied!

    Product: Original Mattress

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

  • (5 Stars)

    So comfortable!!

    Product: Original Mattress

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

Showing 1 to 5 of 21,931 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.

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.