Premium Foam Mattress
As comfortable as it is affordable.
Expertly engineered to solve your sleep needs without breaking the bank, our signature foam mattress features three layers of cradling foam and a responsive yet supportive medium-firm feel sleepers love.
Which mattress size is right for you?
When picking your next mattress, it’s more than just personal preference—two key things to keep in mind are how much room you have and who’s sleeping in the bed.
Upgrading to a King mattress is a game-changer if you’re sharing space with kids or pets. And if you’re tall, the extra length of a California King could be just right.
A Full size mattress is ideal for young adults or those with a smaller bedroom, while a Queen is the top pick for couples or anyone who enjoys extra space to sprawl out.
The Twin is the smallest option, ideal for single sleepers. While the Twin XL is a dorm favorite it can also create a Split King if you purchase two.
Which pillow size is right for you?
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.
DREAMY SLEEP, DREAMIER PRICE: Enjoy deep sleep at an affordable price.
DECADE OF DURABILITY: Casper mattresses use the highest-quality foams to stay comfortable year after year.
The One foam mattress is especially comfortable for stomach sleepers.
Got Questions? Talk to a Sleep Specialist.
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Free, no-contact delivery
100-night risk-free trial*
10-year limited warranty*
A breathable, buttery soft knit cover.
Makes your mattress feel even cozier.
A responsive and breathable open-cell foam.
Designed for great airflow and a little bit of bounce to keep sleepers from feeling overheated or stuck.
Conforming memory foam with continuous support.
Premium foam provides optimal support across the mattress.
A sturdy, high-density foam base layer.
Provides long-lasting support while preventing sinking and sagging.
See the thoughtful engineering behind The One.
The Casper Core is engineered to support you night after night and year after year.
Even your bed needs a bed. Build your sleep setup from the ground up.
Casper has three levels of Adjustable Bed Frames designed to work with any Casper mattress. You can use them on their own, on a Casper slatted frame, or inside your existing frame (just be sure to measure). Every base includes head and foot lift plus Zero Gravity mode, while Pro and Max feature upgraded lumbar support and more. This setup is perfect for sleepers who want full customization and ultimate relaxation (warning: there’s no going back).
38" W x 75" L x 11" H
47 lbs
38" W x 80" L x 11" H
50 lbs
53" W x 75" L x 11" H
64 lbs
60" W x 80" L x 11" H
76 lbs
76" W x 80" L x 11" H
94 lbs
72" W x 84" L x 11" H
93 lbs
76" W x 80" L x 11" H
100 lbs
Patents: https://casper.com/pages/patent
Free shipping and free returns* – learn more about Delivery.
*Additional shipping fees apply to Alaska and Hawaii. Terms and Conditions apply.
Returns can be initiated after the 30-Night Adjustment Period.
Subject to 10-year Limited Mattress Warranty. Learn More.
Some states charge a Recycling Fee to help fund their mattress recycling programs. This state-mandated fee is added to the cost of each mattress, foundation, and bed frame you order and is not refundable.
* 92% of Casper customers keep their mattress based on a 12-month cohort of customers who purchased between May 2025-Apr 2026.
Real feedback from customers who have experienced the Casper difference.
We bought "The One" after checking the Consumer Reports review and we're very pleased with our purchase. It arrived quickly, was easy to set up and provides comfortable, even support for 2 adults.
Paula D.
The One
Very comfortable, right firmness and no more waking up with back pain. Would recommend this mattress to anyone who is tired of waking up with aches and pains.
Glenn B.
The One
The balance between comfort and support is spot on. We have bought Casper products - our third mattress and continue to enjoy the comfort.
Scott W.
The One
Overall rating: 4.395078 / 5 from 17961 reviews.
The One mattress offers a luxurious and soft feel, providing great support and comfort. Customers appreciate its fast and efficient delivery, easy unboxing, and high-quality construction. While some users experienced back pain, others found relief from pain in their back, hips, and neck. Customer service is highly praised, though feedback on the smell is mixed.
Review topics: ["installation","replacement","delivery","problem","feel","packaging","support","price","customer service","quality","comfort","set","box","husband","frame","use","size","improvement","fit","mattress","wife","value","foam","sleep","dreams","cover","base","bed","looks","balance"].
"I've had the bed for over a month; I still smell the chemicals venting from the mattress. It smelled bad enough when we first got it I took off its protective layer and left it in out bedroom with fans blowing on and the windows open. As far as comfort and sleep quality it's great."
"We are sleeping comfortably on this mattress and we really like it. We slept on our previous mattress for fifty years. It was a Swedish latex foam mattress on a Danish platform bed. The has taken a little while for us to become used to our Casper and it's 11 inch thickness after sleeping on our old mattress for so many years. The relative softness of the edges or sides has required the most adjustment on our methods of getting into and out of bed. Our Casper has been otherwise perfect."
"I absolutely love my new Casper Mattress. I have been sleeping great. A friend had a Casper Mattress and I slept on it. When it was time for me to purchase a new mattress, i knew exactly what i wanted to buy! Great quality with an affordable price. Prompt home delivery."
"Have been sleeping for a long time on Casper mattresses. Moved to a bigger place and needed more beds for the guest room. So bought new ones for ourselves and moved the ones we had to the guestroom. Comfort level: could not be better. Soft with support where needed. Slept better without any stiffness after the third day. I have an adjustable bed frame. Cost: Very competitive. On the lower end of other branded mattresses. I would recommend that Casper be given a try by everyone in the market for a new mattress. Returnable after atrial period within 100 days."
"I love the Casper mattresses. We purchased a queen from Costco and loved it then wanted the King and bought it from Casper website. It came sooner than expected and has let us have amazing rest feeling great the next morning."
"Terrible. Never been picky about beds or sleep until this mattress; causes back pain within 10 minutes of laying on it. Has only gotten worse over time. Don't listen to their 'hassle-free' return policy - they pass it off to a third party who doesn't cover your area, thus leaving you to dispose of your mattress on your own, on your own time. Then you have to hope they'll honor the refund (just like they honored the pickup). Awful company, awful product, STAY AWAY."
"This is my 3rd Casper mattress I’ve ordered. First purchase was for myself (10years ago)and the next two for my kids. These mattresses are very comfortable. My 10 yo mattress has held up fantastic. Still extremely comfortable."
"Not only months of waiting (ordered bed frame in early July, still waiting for it in early September) but they delivered the wrong size 2 weeks ago and I’ve heard nothing back from Casper since. Customer Service was apologetic and professional, yet theft told me they get back to me within a few days to give me the info for an expedited correct order. No word after 2 weeks."
"So far loving our new bed! It is comfy and cozy. It's the perfect balance of firm and soft."
"Its comfy ...but disapointed that the side of mattress is not sturdy at all. When i sit on side to put socks on or just get out of bed you sink right in..."
Feel the difference in person. Try products for yourself and chat with a Sleep Specialist at a store near you.
Our Sleep Specialists are dedicated to helping you find the mattress of your dreams. Give us a call or chat with us now.
Our Comparable Value prices reflect the price at which we or third parties have offered this item or a comparable item.
How does Casper create the best value products for their sleepers?Our team regularly searches the market and tests comparable mattress and sleep products to ensure that ours offer top-quality materials, the most value for your dollar, and the best sleep experience on the market.
Every Casper mattress is designed and assembled in the USA.
As part of the Carpenter Co family, Casper mattresses are manufactured by the largest foam manufacturer in the world—no middle man, no markups, just the best prices for our sleepers.
We don’t rely on gimmicks—just 12+ years of expertise.
With 12+ years in the mattress and bedding industry, the Casper team knows what makes a great night’s rest and what’s just fluff. Our mattresses and bedding are obsessively-engineered and precisely-layered to help you get your deepest sleep ever.
We don’t sleep on getting you the best possible deal.
The Comp. Value shown for Casper products is never set it and forget it. Our team conducts thorough market research every quarter to ensure our comparable value is always accurate to the bedding market and the three most comparable products, so you never have to worry about missing out on savings.
