Leesa vs Casper: which mattress should you buy?
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The short answer
In the Leesa vs Casper matchup, Leesa is the better pick for most people. The Leesa Original is softer and better suited to side and combination sleepers, sleeps a little cooler, costs less on sale (around $769 vs $899 for a queen) and comes with a 365-night trial and lifetime warranty. Choose Casper The One if you sleep mainly on your back, want a firmer, thicker foam bed, or prefer Casper's open-cell foam feel. Both are excellent at keeping a partner's movement from waking you.
Key differences at a glance
- Casper The One is firmer (7.0 vs 6.0/10). Leesa Original will feel more cushioned at the shoulders and hips; Casper The One keeps hips more level for back and stomach sleeping.
- Leesa Original costs about $130 less for a queen at typical prices ($769 vs $899).
- Trial: Leesa Original gives 365 nights; Casper The One gives 100 nights.
- Warranty: Lifetime vs 10 years.
Firmness compared
Leesa Original
Casper The One
Performance head to head
4 vs 4
4 vs 3
5 vs 5
3 vs 3
2 vs 2
Specs side by side
| Spec | Leesa Original | Casper The One |
|---|---|---|
| Type | Memory foam | Memory foam |
| Firmness | 6.0/10 (Medium-firm) | 7.0/10 (Firm) |
| Queen price (approx.) | $769 | $899 |
| Height | 10″ | 11″ |
| Sleep trial | 365 nights | 100 nights |
| Warranty | Lifetime | 10 years |
| Pressure relief | 4/5 | 4/5 |
| Cooling | 4/5 | 3/5 |
| Motion isolation | 5/5 | 5/5 |
| Edge support | 3/5 | 3/5 |
| Price check | See today’s price | See today’s price |
Prices are approximate queen prices when we last checked and change often. Ratings are 1–5 from published specs and independent test results — see how we score.
How they feel: medium Leesa vs medium-firm Casper
The Leesa Original is a 10-inch foam mattress with 2 inches of plant-based GreenFlex foam and 2 inches of memory foam over a support core. Leesa calls it medium, and independent testers place it around 5 to 7 out of 10, which we record as 6. You get balanced cushioning: shoulders and hips sink in a bit, but it doesn't feel mushy.
Casper The One is an 11-inch all-foam bed rated about 7 out of 10, a full step firmer. Its open-cell Breathe Flex foam and Align+ memory foam give a gentle contour with more of an on-top feel.
In our review-based ratings, the two tie on motion isolation (5 out of 5) and pressure relief (4 out of 5), and both have average edges and little bounce. Leesa scores higher for cooling, 4 vs 3 out of 5.
Who should pick each: Casper vs Leesa for your sleep position
Pick Leesa if you sleep on your side or switch between side and back, if you're light to average weight, or if you sleep a little warm. Skip it if you're a heavier stomach or back sleeper who needs a firmer, more supportive surface.
Pick Casper if you sleep mainly on your back, find medium mattresses too soft, or want a slightly taller profile. Skip it if you're a lighter side sleeper, since 7 out of 10 can feel firm at the shoulders, or if you run hot.
Neither has coils, so if you want bounce and stronger edges, compare a hybrid like the Helix Midnight in our Helix vs Leesa breakdown.
Value and policies: Leesa's longer trial
The Leesa Original lists at about $967 for a queen and is often around $769 on sale. Casper The One lists at about $1,149 and is often around $899. Leesa also offers a 365-night trial and limited lifetime warranty, compared with Casper's 100 nights and 10-year limited warranty. Leesa gives you more for less.
See more in Leesa vs Nectar, Casper vs Tuft & Needle and our Leesa brand guide, or take the mattress quiz.
Frequently asked questions
Is Leesa better than Casper?
For most side and combination sleepers, yes. The Leesa Original is softer, sleeps a little cooler, costs less on sale and has a longer trial and warranty. Casper The One is the better choice for back sleepers who want a firmer foam mattress. Both isolate motion very well, so either works for couples.
Which is softer, Leesa or Casper?
The Leesa Original is softer. Independent testers place it around 5 to 7 out of 10, which we record as 6, while Casper The One rates about 7 out of 10. That difference makes Leesa a better match for side sleepers and Casper a better match for back sleepers who want firmer support.
Do Leesa and Casper mattresses contain fiberglass?
Both models listed here are described as fiberglass-free. The Leesa Original is also CertiPUR-US and GREENGUARD Gold certified and uses plant-based foam, while Casper The One uses open-cell foam and is designed and assembled in the USA. Check current product details when you buy, since materials can change.