| Best Solution For |
- 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. {"@context":"http://schema.org/","@type":"Product","@id":"https://casper.com/mattresses/casper-one-foam.html","name":"The One","description":"The mattress that broke the Internet-reimagined.","productID":"casper-one-foam","sku":"casper-one-foam","url":"https://casper.com/mattresses/casper-one-foam.html","brand":{"@type":"Brand","name":"Casper"},"image":["https://casper.com/dw/image/v2/BFHV_PRD/on/demandware.static/-/Sites-casper-master/default/dwa746511a/product_images/One-Mattress/One-V2.jpg'sw=1023&sh=1023&sm=fit","https://casper.com/dw/image/v2/BFHV_PRD/on/demandware.static/-/Sites-casper-master/default/dwa1a30051/product_images/One-Mattress/One-Hi-Res.jpg'sw=1023&sh=1023&sm=fit","https://casper.com/dw/image/v2/BFHV_PRD/on/demandware.static/-/Sites-casper-master/default/dw0c3a1f85/product_images/One-Mattress/One-Features-V4.jpg'sw=1023&sh=1023&sm=fit","https://casper.com/dw/image/v2/BFHV_PRD/on/demandware.static/-/Sites-casper-master/default/dwf4c9d27f/product_images/One-Mattress/One-Room-V2.jpg'sw=1023&sh=1023&sm=fit","https://casper.com/dw/image/v2/BFHV_PRD/on/demandware.static/-/Sites-casper-master/default/dwe8c424f8/product_images/One-Mattress/One-Layers-V4.jpg'sw=1023&sh=1023&sm=fit","https://casper.com/dw/image/v2/BFHV_PRD/on/demandware.static/-/Sites-casper-master/default/dw0747faac/product_images/One-Mattress/UnboxV1.png'sw=1023&sh=1023&sm=fit"],"offers":{"url":"/mattresses/casper-one-foam.html'size=queen","@type":"Offer","priceCurrency":"USD","price":"999.00","availability":"http://schema.org/InStock"},"aggregateRating":{"@type":"AggregateRating","ratingValue":"4.5","reviewCount":"22255","bestRating":5}} Let's take a look under the covers
The One for every body. And everybody.
Classic Casper Feel
Responsive, supportive foam with the perfect bit of bounce our sleepers love.
Long-Lasting Support
Layers of premium foam are engineered to be as durable as they are cozy.
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
See all reviews
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: $999 $876 UPGRADE
Dream
Size: Queen Price: $1,875 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 4 Layers
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Details Details
The mattress that broke the Internet-reimagined. Questions
Ratings & Reviews
22,255 Reviews
4.5 out of 5.0
5 Stars
(15,872) 4 Stars
(2,866) 3 Stars
(1,610) 2 Stars
(959) 1 Stars
(948) Review this product
Place a review Adding a review will require a valid email address for verification. Filter reviews by: All Models The One The Casper Mattress Original Select Ratings 5 Stars 4 Stars 3 Stars 2 Stars 1 Stars
• (5 Stars)
Nice
I could tell almost immediatly because my back pain was dramatically reduced. It gives in the right places and supports in the others.
Product: The One
Rick DeStefanis
2 days ago
Disclaimer: This review is of a mattress of comparable feel.
(5 Stars)
I bought it to stop myself from sleeping on my sister's Casper mattress.
I was using a premium foam mattress from another brand(Br******). But I always found myself sleeping on my sister's Casper mattress instead of mine. I seemed to toss and turn less on it lol. After getting punched in the face by my sister, I swiftly clicked on the buy button for Casper's The One. Now I'm on good terms with my sister.
Product: The One
Jong Hyun
5 days ago
Disclaimer: This review is of a mattress of comparable feel.
This review was incentivized.
(5 Stars)
Best mattress
Great quality, easy to unpack too (one person can do it). Super comfy mattress shipped to our door in a box!
Product: The One
Briarly
5 days ago
Disclaimer: This review is of a mattress of comparable feel.
This review was incentivized.
(5 Stars)
So comfortable
A great mattress. So easy to set up and so soft
Product: The One
Haley
6 days ago
Disclaimer: This review is of a mattress of comparable feel.
This review was incentivized.
(5 Stars)
Peaceful Dreamer
My first Casper experience was with a friend's "The Original" (which is no longer made,) but I consulted customer service who told me that "The One" would be similar. I have Fibromyalgia and arthritis, and this has given me SIGNIFICANT hip and back relief upon waking in the morning. Ahhhhh....
Product: The One
Christy
6 days ago
Disclaimer: This review is of a mattress of comparable feel.
Showing 1 to 5 of 22,255 results Previous Next
Elevate your sleep game
Quick view Review Rating: 4.1 stars (8892) Original From Price: $65 Standard or King Quick view Review Rating: 4.5 stars (401) Foundation From Price: $299 6 sizes Quick view Review Rating: 4.1 stars (1259) Waterproof Mattress Protector From Price: $89 6 sizes Quick view Review Rating: 3.8 stars (86) Hybrid Snow Pillow From Price: $149 Standard or King
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. +1 888.498.0003 Chat now Try in store
Included with every Casper Mattress
We'll replace it with a new one
10-year limited warranty*
Send it back for free
100-night risk-free trial*
The shipping is on us
Free, no-contact delivery*
Buy now, pay over time
Quick, simple financing options
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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.
Flexible payments - pay over 3-24 months with rates as low as 0% APR, subject to eligibility. Zero credit required. Lease to own. Pay over time on your schedule. document.addEventListener('DOMContentLoaded', function() { // Find the accrue-savings-placement element const accrueElement = document.querySelector('accrue-savings-placement'); // Clone the element const clone = accrueElement.cloneNode(true); // Find the div with class 'katapult-price-calculator' const referenceDiv = document.querySelector('.katapult-price-calculator'); // Insert the cloned element after the 'katapult-price-calculator' div if (referenceDiv) { referenceDiv.insertAdjacentElement('afterend', clone); } }); accrue-savings-placement { margin-top:1rem; } #financing-options .text-and-icon-block-layout__content .experience-components { flex-wrap:wrap } .Text_typography_small__124g65bm { font-size: 12px !important; color:#151515 !important; letter-spacing:0.6px !important; max-width: 350px; } #accrue-billboard .Text_typography_small__124g65bm { font-size: 16px !important; max-width: auto; } .text-and-icon-block-asset .image-wrap+.description { margin-top:0px; } @media (min-width: 576px) { #financing-options .text-and-icon-block-layout__content .experience-components { flex-wrap:no-wrap; } .text-and-icon-block-asset .image-wrap+.description { margin-top:1rem; } } @media (max-width: 575.98px) { .text-and-icon-block-layout__content .text-and-icon-block-asset .image-wrap img { width: 120px; height: 120px; } } @media (max-width: 575.98px) { .text-and-icon-block-layout__content .text-and-icon-block-asset .description { display: block; } }
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Frequently asked
questions
Does The One memory foam mattress sleep hot?
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 you are a hot sleeper, 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.
Which is the firmest mattress in the assortment?
The "One" is the firmest mattress type 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 affordable memory foam mattress experience. The One is firmer than our previous value model, The Casper.
I have The Casper and I wanted another. Which mattress should I buy now?
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 the best choice for anyone looking for an inexpensive mattress upgrade.
What kinds of bed frames are compatible with Casper mattresses?
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.
I need a split king base. Do you offer that?
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.
What is a mattress in a box? How long does it take for a Casper mattress to expand?
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.
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