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Best-Selling Bundle (One Mattress)

$1,100.45 $1,693
4.3 out of 5 Customer Rating

Best-Selling Bundle (One Mattress)

4.3 out of 5 Customer Rating
Optional: Get 35% off (applied in cart):
What's in your bundle:
The One
Orig. $1,245
In stock, ships within 1-2 days
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The mattress that broke the Internet—reimagined.

The Foundation
Orig. $349
Ships by Jul 08
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Created to support your mattress. Set it up in minutes with easy, no-tool assembly.

Waterproof Mattress Protector
Orig. $99
In stock, ships within 1-2 days
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Guards against dirt, spills, and normal wear and tear.

AS LOW AS:
You save up to $592.55!
$1,100.45 $1,693
In-stock, ships within 1-2 days | Free shipping & returns
Best-Selling Bundle (One Mattress)
$1,100.45 $1,693


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.

Don't Lose Sleep

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

Twin

Foundation: 37.5" x 74" x 7.5"

One Mattress: 38" x 75" x 11"

Mattress Protector: 39" x 75"

Twin XL

Foundation: 37.5" x 79" x 7.5"

One Mattress: 38" x 80" x 11"

Mattress Protector: 39" x 80"

Full

Foundation: 52.5" x 74" x 7.5"

One Mattress: 53" x 75" x 11"

Mattress Protector: 54" x 75"

Queen

Foundation: 59.5" x 79" x 7.5"

One Mattress: 60" x 80" x 11"

Mattress Protector: 60" x 80"

King

Foundation: 75.5" x 79" x 7.5"

One Mattress: 76" x 80" x 11"

Mattress Protector: 76" x 80"

Cal. King

Foundation: 71.5" x 83" x 7.5"

One Mattress: 72" x 84" x 11"

Mattress Protector: 72" x 84"

One Mattress

Top layer of breathable polyurethane foam.

Second layer of memory foam.

Durable base of polyurethane foam.

 

Foundation

Solid and/or Engineered Wood Frame and Slats

Woven Exterior Upholstery

Non-Woven Interior and Slat Upholstery

 

Mattress Protector

Knit Top: Polyester and Spandex

Skirting: Polyester, Nylon, and Spandex Polyethylene

The foundation works with any mattress. Requires a simple metal bed frame, slatted bed frame, or a platform (if you want extra height). The foundation should not be put directly on the floor.

Lets 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.

Ratings & Reviews

21998 Reviews
4.5 out of 5.0

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  • (5 Stars)

    Loved it

    Great mattress. Would buy again.

    Product: The One

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

  • (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.

    Gift Icon This review was incentivized.

  • (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: The One

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

    Reply from Casper:
    Thanks for choosing Casper! We're so glad to hear that you're both loving The One and resting easier. Give us a shout if you need anything, our specialists are here to assist with all things sleep!

    Gift Icon This review was incentivized.

  • (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: The One

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

    Gift Icon This review was incentivized.

  • (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: The One

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

    Gift Icon This review was incentivized.

Showing 1 to 5 of 21,998 results

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. 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

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 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.

The 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.