Casper Review: The Bed That Started the Whole Bed-in-a-Box Thing

Casper didn’t invent the mattress. But back in 2014, they basically invented the way you buy one now — no showroom, no salesperson hovering while you awkwardly lie down in your work clothes, just a box on your porch and a mattress that unrolls itself like it’s showing off. We still think about that first unboxing every time a new one shows up at the lab.
What keeps Casper relevant a decade later, though, isn’t the nostalgia — it’s the Zoned Support foam layer running down the middle of the bed. The shoulders get a softer zone to sink into (so side sleepers stop waking up with a dead arm), while the lower back sits on a firmer strip that keeps your spine from sagging into a hammock shape overnight. It’s a small engineering move that solves a genuinely common complaint, and you can feel the difference the second you lie down.
Where Casper Shines
- Side and combination sleepers who need shoulder relief without losing lower-back support
- Couples — the all-foam construction soaks up movement so a 2 a.m. bathroom trip doesn’t register as an earthquake
- Anyone who wants “just works” simplicity over a dozen configuration choices
Where It’s Not the Move
- Committed stomach sleepers or anyone over about 230 lbs who wants a firmer, more supportive feel
- Hot sleepers who run warm year-round; foam-forward beds trap more heat than a coil-heavy hybrid
Need a firmer bed than Casper? Stomach sleepers and heavier back sleepers often do better on Chirofoam, a firm-only, Toronto-made mattress with a dedicated lumbar support layer and a 15-year warranty. Start with the Chirofoam Original (luxury firm) or read our Chirofoam vs Casper comparison.
Want to compare Casper with a simpler foam option? See our Tuft & Needle review for the 2026 lineup, firmness and trial terms.
Casper still ships with a trial period long enough to actually live with the thing through a full sleep cycle or two, plus a multi-year warranty — details worth double-checking on their site since promos shift, but the safety net has always been generous.
See how this compares to other options in our Best Mattresses in California buying guide.