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Home · The Home of Foam Mattress Superstore
Casper One Mattress
Deal score 4.9 · Good deal
$749.00$1,074.00 The Home of Foam Mattress Superstore's regular price
You save $325.00 at The Home of Foam Mattress Superstore
Deal.ai's agents found this deal on November 10. The store may have changed its price since.
Why it's a great deal
- The Home of Foam Mattress Superstore lists its regular price at $1,074.00: 30% off by its own figures
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From Mattress Overstock Kentucky
- Consumer Reports' top-rated all-foam mattress of 2026 (Consumer Reports does not endorse products)
- Zoned support: softer under shoulders, firmer under hips and lower back
- Breathe Flex Foam open-cell top layer for airflow and a little bounce
- Align+ memory foam for pressure relief at hips and shoulders
- All-foam construction isolates motion so a partner's turn barely registers
- High-density Casper Core base holds the medium feel and shape over years
- Sizes
- Twin, Twin XL, Full, Queen, King, Cal King
- Materials
- Cozy knit cover; Breathe Flex Foam (zoned, open-cell); Align+ memory foam; high-density Casper Core base; CertiPUR-US certified foams
- Fit
- Eleven inches tall; true medium, about 6 out of 10 on firmness; takes a standard fitted sheet
- Sizing
- A true medium (6/10); if you want a plusher landing the medium may read a touch firm, and the medium-soft Cloud One is the better call
- Guarantee
- Casper's 10-year limited warranty against manufacturing defects, honored when bought from Mattress Overstock as an authorized dealer
- Returns
- 100-night home trial, held at full length when buying from a local authorized dealer; see exchange policy for details
- Shipping
- Free local delivery, setup and old-mattress haul-away on qualifying purchases across Central & Eastern Kentucky; online shipping charges, if any, show at checko
What buyers say
Buyers like
- Consumer Reports' top-rated all-foam mattress of 2026
- Casper reports 92 percent of buyers keep their One past the trial
- Zoned support suits back, side and combination sleepers
- Quiet all-foam motion isolation for couples
- Sleeps cooler than dense memory foam thanks to the open-cell top
- Store rated 4.7 from 582 Google reviews
Buyers complain about
- Medium feel may read a touch firm for plush-feel sleepers
- Not a dedicated cooling system for very hot sleepers
Specs
- Size
- California King
- Type
- Innerspring
- Topper Type
- Pillowtop
- Specialty Style
- Adjustable Bed
- Thickness
- 11 in
- Length
- 80 in long
- Width
- 38 in wide
- Firmness Level
- Medium Firm
- Mattress Type
- Memory Foam
- Certifications
- CertiPUR-US certified
About the Casper One Mattress
The Casper One is an all-foam mattress with zoned support: softer foam under the shoulders, firmer foam under the hips and lower back. It has a medium-firm feel, an open-cell Breathe Flex Foam top layer for airflow, and a high-density core base. It is CertiPUR-US certified, fiberglass-free and made in the USA. Consumer Reports named it its top-rated all-foam mattress of 2026, and Casper says 92 percent of buyers keep it past the trial.
Best forBack and stomach sleepersCouples who want quiet motion isolationCombination sleepers who need zoned supportShoppers who want a fiberglass-free all-foam mattress
Pros
- Zoned support is softer at the shoulders and firmer at the hips
- All-foam build isolates motion, so a partner's movement barely registers
- Open-cell top foam sleeps cooler than dense memory foam
- CertiPUR-US certified and fiberglass-free
- Removable, washable soft knit cover
- Consumer Reports' top-rated all-foam mattress of 2026
