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100-night trial10-year warrantyCertiPUR-US
Why we recommend it
- +Three-layer foam build with Casper Core support
- +Strong motion isolation for an all-Foam bed
Memory Foam
Casper The One
By Casper
Casper's entry foam mattress with three layers of responsive foam, a soft knit cover, and a medium-firm feel.
$799$1,149Queen
100-night trial
10-year warranty (limited)
Height: 11"
Firmness: 6.5/10(brand_descriptor_calibrated_medium_firm)
CertiPUR-US
See Today's Price at Casper →Affiliate link — we may earn a commission at no extra cost to you.
What's included
- ✓100-night sleep trial
- ✓10-year warranty
- ✓Free shipping & returns (most brands)
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Pricing by Size
| Size | MSRP | Sale Price | Action |
|---|---|---|---|
| Twin | $874 | $599 | View Current Offer |
| Twin XL | $974 | $679 | View Current Offer |
| Full | $1,074 | $759 | View Current Offer |
| Queen | $1,149 | $799 | View Current Offer |
7.4/10
SleepRankedEditor Score
Editor's Review
The Casper The One is a solid memory foam choice with a few trade-offs — best suited for sleepers who prioritize motion isolation.
Firmness Fit9.0
Cooling5.0
Motion Isolation10.0
Edge Support3.0
Value8.5
Editor score computed from verified specifications by the SleepRanked editorial team. 1 review.
Popular With
back sleeperscombination sleeperscouplesvalue shoppers
Casper Lineup: Good / Better / Best
Good
The One
Casper
$799
Currently viewingFinancing Options
Available through: Affirm
Learn more about mattress financing →Certifications
CertiPUR-US
Where to Buy
Affiliate links — prices may vary by retailer. We recommend buying direct for the best trial and warranty terms.
Pros & Cons
Pros
- + Three-layer foam build with Casper Core support
- + Strong motion isolation for an all-Foam bed
- + Split King is sold from the PDP
Cons
- - No coil edge feel
- - No active Snow cooling package
- - Medium-firm feel is less plush than Cloud One
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Compare Casper The One with Similar Mattresses
Side-by-side comparisons against the closest matches on type, firmness, and price tier.
- Casper The One vs GhostBed Comfort Foamsame memory foam build, similar firmness, similar price tier
- Casper The One vs Bear Bear Originalsame memory foam build, similar firmness, similar price tier
- Casper The One vs Tuft & Needle Original Legacy Editionsame memory foam build, similar firmness, similar price tier
- Casper The One vs Tuft & Needle Originalsame memory foam build, similar firmness, similar price tier
- Casper The One vs Leesa Originalsame memory foam build, similar firmness, similar price tier
