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The One

Premium Foam Mattress
Price: $1,245 Sale Price: $995
20% OFF

The One

Premium Foam Mattress
Price: $1,245 Sale Price: $995
20% OFF
Make it a bundle: You save $46!
Original Pillow Double Pack
Original Pillow Double Pack
Our dreamy down-alternative pillow that is both soft and supportive.
$130
Waterproof Mattress Protector
Waterproof Mattress Protector
Guards against dirt, spills, and normal wear and tear.
$99
Original Pillow Double Pack
+
Waterproof Mattress Protector
Original Pillow Double Pack and Waterproof Mattress Protector. You save $46!
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In-stock, ships in 1-2 business days | Free shipping & returns
The One
Price: $1,245 Sale Price: $995
Price: $1,245 Sale Price: $995

Got questions?

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

Give us a call: +1 888.498.0003
Try it in a store near you

The mattress that broke the Internet—reimagined.

Our best all-foam mattress, expertly designed to meet any sleep needs. Featuring a responsive yet supportive medium-firm feel you’ll love.

  • OVERHEATING IS OVER: Every layer of foam is designed for all night breathability.
  • BEST NIGHT’S REST: Three layers of supportive, pressure-relieving foam soothe your body.
  • THE FEEL SLEEPERS LOVE: Uniquely supportive with the perfect bit of bounce.

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

Twin

38" W x 75" L x 11" H 47lbs

Twin XL

38" W x 80" L x 11" H 50lbs

Full

53" W x 75" L x 11" H 64lbs

Queen

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

King

76" W x 80" L x 11" H 94lbs

California King

72" W x 84" L x 11" H 93lbs

Split King

76" W x 80" L x 11" H x 100lbs

  • 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.

Let's take a look under the covers

The One for every body. And everybody.

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Classic Casper Feel

Responsive, supportive foam with the
perfect bit of bounce our sleepers love.

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Long-Lasting Support

Layers of premium foam are engineered to be as durable as they are cozy.

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Perfected Over 10 Years

We redesigned our “one perfect mattress” with 10 years of feedback to make it even more perfect-er.

See why customers love The One

"I actually had to hunt down the AirBNB we stayed at to find this mattress. We had tried 3 others and they couldn't compete... as a side sleeper, it's just as great for me and my stomach sleeping husband... I'd pay double for this bed."

Karie
Port Charlotte, FL

"After 2 nights on my new Casper mattress I’m sleeping better than in years. I haven’t been able to sleep on my side for long periods...but now I can without pressure on my joints. I’m no longer waking up with body aches and soreness."

Donna
Colorado City, CO

"I have never slept better, I didn't realize what sleep was before this mattress, life changing."

Joshua
Oxford, CT

Compare This Mattress

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

YOU'RE VIEWING

The One

Size: Queen
Price: $1,245 Sale Price: $995
$500 UPGRADE

Dream

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.
Medium-Firm
Firm
Soft
Medium
Firm
Soft
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.
Continuous Support

Expertly engineered layers of foam that provide consistent support and long-term durability.

Zoned Support

Added layer of zoned foam and flex coils give you enhanced support and alignment where you need it most.

Cooling & Breathability
Keep cool all night with breathable foams and Snow Technology.
Breathe Flex Foam

A responsive and breathable open cell foam soothes you to sleep.

Breathe Flex Foam

A responsive and breathable open cell foam soothes you to sleep.

Mattress Construction
We offer both soothing all-foam and responsive hybrid constructions to make sure every sleeper gets their favorite feel.
11"

Foam Mattress

12"

Hybrid Mattress

Mattress Layers
Every Casper mattress is engineered with features and layers you need for better sleep.
4

Layers

5

Layers


Details

The mattress that broke the Internet—reimagined.

Ratings & Reviews

22,118 Reviews
4.5 out of 5.0

Review this product

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  • (5 Stars)

    Love it!

    Great mattress and will not go back to anything else.

    Product: The One

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

  • (5 Stars)

    Great mattresses

    We love our mattresses. You do not feel anything when the other person in bed moves. Just the right amount of firm and soft.

    Product: The One

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

    Gift Icon This review was incentivized.

  • (5 Stars)

    Pure Bliss!

    Awesome mattress and delivery/setup was seamless. Great product and service

    Product: The One

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

    Gift Icon This review was incentivized.

  • (5 Stars)

    Easy peasy, lemon squeezy

    This is our 4th Casper mattress (we are a family of 5). Our youngest just transitioned to a big boy bed. We knew we wanted another Casper mattress. Easy ordering, delivery, and setup. Mattress is just the right amount of firmness.

    Product: The One

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

    Gift Icon This review was incentivized.

  • (5 Stars)

    Love it

    It came so quick and easy to open. The mattress is very comfy!

    Product: The One

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

    Gift Icon This review was incentivized.

Showing 1 to 5 of 22,118 results
Speak to a
Sleep Specialist
Our Sleep Specialists are dedicated to helping you find the mattress of your dreams. Give us a call or chat with us now.

Included with every Casper Mattress

10-year limited warranty*

We'll replace it with a new one

10-year limited warranty*

100-night risk-free trial*

Send it back for free

100-night risk-free trial*

Free, no-contact delivery*

The shipping is on us

Free, no-contact delivery*

Quick, simple financing options

Buy now, pay over time

Quick, simple financing options

Optional white glove delivery*

Let us do the heavy lifting

Optional white glove delivery*

* Select products ineligible for free shipping or returns where indicated. Additional shipping fees apply to AK and HI.

Sleep now, pay over time.

Earn cash rewards
Flexible payments - pay over 3-24 months with rates as low as 0% APR, subject to eligibility.
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Zero credit required. Lease to own. Pay over time on your schedule.
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Frequently asked
questions

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.