The Casper One from Casper is a foam mattress with a medium feel that works for many side and back sleepers, and for combination sleepers who switch positions.
Inside the Casper One
Casper One
10" tall
Casper · Foam · Firmness 6/10
Hover or tap a layer to slide it out
Layer breakdown
Polyfoam comfort layer
1.5″ thick · 2.3 lb/ft³ density
Measured at 2.3 lb/ft³ — clears the ~2.2 lb/ft³ durability bar we'd hold polyfoam to even under heavier (200 lb+) sleepers.
Memory foam transition layer
1.5″ thick · 3 lb/ft³ density
Measured at 3 lb/ft³ — solid memory foam for average-weight sleepers, though heavier (200 lb+) sleepers would want closer to 3.2 lb/ft³ here.
Polyfoam support core
7″ thick · 1.8 lb/ft³ density
Measured at 1.8 lb/ft³ — clears the ~1.8 lb/ft³ durability bar we'd hold polyfoam to even under heavier (200 lb+) sleepers.
Hover or tap a layer to see what it means for comfort and durability.
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