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Casper's entry all-foam mattress: three foam layers and a medium-firm, slightly bouncy feel at the lowest price in the range.
The One is Casper’s entry mattress and, by its own label, its best seller. It is an 11-inch (28 cm) all-foam bed with three layers: a breathable polyurethane foam on top, memory foam in the middle and a dense base foam Casper calls Casper Core.
The feel is medium firm, which we put at 6 on our 1 to 10 scale. The top foam is springy rather than slow, so you get a little bounce and can turn over without fighting the mattress. Back and stomach sleepers get even support; side sleepers above average weight may want more give at the shoulder.
Casper says every layer is made to breathe, and the open-cell top foam does help, but an all-foam bed without coils will not match the Casper Snow, the brand’s cooling hybrid, for cooling.
The price is the argument: a Queen costs $1,074 on casper.com, with a 100-night trial and a 10-year limited warranty.
| Brand | Casper |
|---|---|
| Material | Three foams: a breathable polyurethane comfort layer, a memory foam second layer and a high-density polyurethane base (Casper Core). Soft knit Cozy Cover. |
| Made in | United States |
| Firmness | Medium firm (6/10) |
| Height | 28 cm |
| Sleep trial | 100 nights |
| Warranty | 10 years |
| Shipping | Free shipping and returns |
| Available sizes | 97x191, 97x203, 135x191, 152x203, 183x213, 193x203 |
| Overall score | 7.8/10 |
“The One is a safe, affordable pick for back and stomach sleepers who want a known brand and an easy return policy. Side sleepers and anyone with lower back pain should look at the Casper Dream, which adds zoning and springs for $1,870 in a Queen.”
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