Casper The One Medium All Foam Twin Size Mattress
or
$100/Month
Suggested monthly payments with 6-month special financing. Offer good now through 12/31/26.
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Delivery and Pickup Options
Superior Service, Before, During & After the Sale
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Questions?
Call Customer Service at (877) 727-1909 let us know how to help.
Delivery and Pickup Options
Superior Service, Before, During & After the Sale
We're dedicated to providing you with fast and reliable shipping options to get your products where they need to go.
Questions?
Call Customer Service at (877) 727-1909 let us know how to help.
Delivery and Pickup Options
Superior Service, Before, During & After the Sale
We're dedicated to providing you with fast and reliable shipping options to get your products where they need to go.
Questions?
Call Customer Service at (877) 727-1909 let us know how to help.
Delivery and Pickup Options
Superior Service, Before, During & After the Sale
We're dedicated to providing you with fast and reliable shipping options to get your products where they need to go.
Questions?
Call Customer Service at (877) 727-1909 let us know how to help.
Installation Options
About this Item
Casper The One Mattress
The One is Casper's expertly engineered all-foam mattress, built with three layers of cradling foam to deliver a responsive, medium-firm feel that makes quality sleep accessible without breaking the bank.
What if better sleep didn't have to cost more?
The One is Casper's signature affordable foam mattress, featuring three thoughtfully engineered foam layers that work together to cradle your body, relieve pressure, and support restful sleep night after night. Its medium-firm feel strikes the balance between plush comfort and dependable support --- delivering the kind of sleep experience typically reserved for higher-priced mattresses.
Backed by a 90-Night Sleep Trial, The One lets you experience the difference Casper's foam engineering makes --- completely risk-free.
Who Is The One For?
The One is an ideal match for back sleepers and side sleepers who need balanced pressure relief and spinal alignment without paying a premium price. Its foam construction contours closely to the body, making it especially well-suited for combination sleepers who shift positions during the night and want consistent comfort throughout. Budget-conscious shoppers who don't want to compromise on sleep quality will find The One a dependable, long-lasting solution.
Pressure Relief & Body Contouring
The One's comfort foam layers conform closely to the body's curves, gently cradling pressure points at the shoulders and hips. This targeted contouring helps reduce aches and pains, particularly for side and back sleepers who need extra cushioning at key contact areas throughout the night.
Motion Isolation
The foam construction of The One absorbs and dampens motion transfer naturally, preventing disturbances from traveling across the mattress surface. This makes it a great choice for couples or light sleepers who need to stay undisturbed even when a partner shifts positions or gets in and out of bed.
Responsive, Medium-Firm Support
The One's three-layer foam system delivers a medium-firm feel that provides responsive pushback to keep your spine properly aligned while you sleep. The supportive base foam ensures the mattress holds its shape over time, maintaining consistent comfort for a wide range of body types and sleep styles.
Three Layers of Foam, Engineered for Better Sleep
The One is built from the ground up with three distinct foam layers, each designed to serve a specific purpose in delivering comfortable, supported sleep. From the durable base that anchors the mattress to the breathable comfort layer on top, every inch is thoughtfully constructed to balance softness and structure.
- Durable Foam Base --- stays supportive year after year, maintaining the mattress's shape and preventing sagging over time
- Cradling Memory Foam --- keeps you aligned and asleep by contouring to your body and supporting proper spinal position
- Breathable Comfort Layer --- helps you get cozy from the moment you lie down, softening the surface for a welcoming feel
- Medium-Firm Feel --- a universally comfortable firmness level designed to suit back, side, and combination sleepers
What Makes The One Different?
Casper designed The One to prove that sleep science and affordability aren't mutually exclusive. Rather than cutting corners to hit a lower price point, The One is engineered with the same design principles behind Casper's more premium mattresses --- delivering meaningful comfort features in a streamlined, all-foam format that genuinely performs.
- 90-Night Sleep Trial: The One comes backed by Casper's 90-Night Sleep Trial, giving you three full months to decide if it's the right mattress for you --- with a hassle-free return if it isn't.
- Casper's Signature Foam Engineering: Built using Casper's established foam-layering approach, The One benefits from years of sleep research and material refinement --- giving shoppers access to proven construction at an accessible price.
- Designed and Assembled in America: Like all Casper mattresses, The One is designed and assembled in the United States, reflecting Casper's commitment to quality control and domestic craftsmanship.
- 10-Year Limited Warranty: The One is protected by a 10-year limited manufacturer warranty, ensuring your investment in better sleep is covered for the long haul.
Ratings & Reviews
Product Height
12 Inches
Product Width
38 Inches
Product Depth
75 Inches
Product Weight (lbs.)
48 Lb(s)
Collection
The One
Series
Not Applicable
Type
All Foam
Size
Twin
Coil Type
Coil Type Not Available
Coil Count
-
Comfort Level
Medium
Comfort Number
3
Construction
Tight Top
Edge Support
Yes
Cooling Technology
No
Hypoallergenic
Yes
Removable Cover
Yes
Adjustable Base Compatible
Yes
Additional Features
As comfortable as it is affordable.
Our all-in-one solution for better sleep.
Signature all foam mattress designed with a responsive yet supportive medium-firm feel is perfect for any sleep style.
Motion Isolation
-
Warranty Terms - Parts
120 Month(s)
Warranty Terms - Labor
120 Month(s)
Gallery
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Special Financing
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Amount Financed
$599.97
Suggested Equal Monthly Payment
$100
Promotional Period
6Mo.
The Suggested Equal Monthly Payment shown above (which may exclude taxes and delivery) may be greater than the required minimum monthly payment that will be on your billing statement when you use the 6-month promotional financing offer.
This estimated payment:- Equals the amount financed divided by 6 rounded to the next highest whole dollar.
- Would pay off the amount financed within 6 months, but only if there are no other balances on your account at any time during the 6-month promotional period and you make your payments on time. Your total payments will equal the amount financed.
If the amount financed is not paid in full within 6 months, interest will be charged to your account from the purchase date and your total payments will be greater than the amount financed.
IMPORTANT: The information about the Suggested Equal Monthly Payment shown assumes the following promotional financing offer is applied to the amount financed:
No Interest if Paid in Full Within 6 Months*
On Mattresses and adj. bases with your P.C. Richard & Son Credit Card now through 12/31/26.
Interest will be charged to your account from the purchase date if the promotional purchase is not paid in full within 6 months. Minimum monthly payments required.
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1New Accounts as of 7/31/25: Purchase APR 34.99%. Penalty APR 39.99%. Min Interest Charge $2.
