Casper The One vs Tempur-Pedic TEMPUR-ProAdapt Medium
Detailed side-by-side comparison — pricing, specs, performance ratings, and our pick.

| Feature | Casper The One | Tempur-Pedic TEMPUR-ProAdapt Medium |
|---|---|---|
| Overview | ||
Type | Memory Foam | Foam |
Firmness Published feel or standardized wording | Medium-Firm | Medium |
Queen Price Current / sale price | $799 | $3,099 |
Trial Period Terms from the linked seller | 100 nights at Casper | ✓ 90 nights at Tempur-Pedic; 30-night minimum; $175 return fee |
Warranty | 10 years | 10 years |
| Performance Ratings | ||
Cooling Hot sleepers | Average | Good |
Motion Isolation Partners, light sleepers | Excellent | Excellent |
Pressure Relief Shoulder and hip cushioning | Good | Excellent |
Edge Support Sit/sleep near edge | Fair | Fair |
Durability Long-term performance | Good | Excellent |
| Compatibility & Features | ||
Adjustable Base Head/foot elevation | ✓ Yes | ✓ Yes |
Split King Support Two Twin XL per couple | ✓ Yes | ✓ Yes |
Dual Comfort Zones Different firmness per side | — | — |
Smart Features App, sensors, auto-adjust | — | — |
Financing | Affirm | Synchrony |
| Materials & Certification Scope | ||
Listed certifications / claims Check model and material scope |
|
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Certificate limitations Not an odor or safety guarantee | Confirm the certificate for the exact model and covered materials. A material certificate does not certify every part of a mattress or guarantee no odor. | Confirm the certificate for the exact model and covered materials. A material certificate does not certify every part of a mattress or guarantee no odor. |
| Best For | ||
Ideal sleeper profiles |
|
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| Actions | Full ReviewCheck price at Tempur-Pedic → Buy with confidence 90-night direct-purchase sleep trial at Tempur-Pedic | |
Need Help Deciding?
For most sleepers, we recommend the Tempur-Pedic TEMPUR-ProAdapt Medium over the Casper The One. It scores higher in cooling, pressure relief, durability and offers strong overall value at $3,099 (vs $799). The Casper The One is the better choice only if budget is paramount — it saves roughly $2300.
Casper The One vs Tempur-Pedic TEMPUR-ProAdapt Medium: What Actually Differs
The Casper The One is a memory foam build, while the Tempur-Pedic TEMPUR-ProAdapt Medium is a foam — that single difference drives most of the cooling, motion, and feel decisions below. The Tempur-Pedic TEMPUR-ProAdapt Medium stands 12" tall versus 11" for the Casper The One — a 1.0" gap that matters if you need deep-pocket sheets or are pairing with an adjustable base. Both sit at roughly 6.5/10 on the firmness scale — a medium-firm feel — so neither one is the answer if you need a dramatically different support level. The single largest performance gap is in pressure relief: the Tempur-Pedic TEMPUR-ProAdapt Medium rates noticeably higher than the Casper The One, which is the deciding factor if that dimension is high on your list. On a Queen, the Casper The One runs $799 versus $3,099 for the Tempur-Pedic TEMPUR-ProAdapt Medium — roughly $2,300 (74%) less, which is enough to factor into the decision unless the pricier model wins clearly on the specs you care about.
Which Is Better For Your Sleep Style?
Higher pressure-relief rating, which is what protects hip and shoulder contact points in the side position.
Medium includes the option closest to a balanced medium feel for back sleepers (vs Medium-Firm).
Medium-Firm includes the firmer published option (vs Medium), which may better suit shoppers who prefer more surface support.
Stronger cooling rating, which matters most for sleepers who run hot or live in warm climates.
better long-term durability — the two specs heavier sleepers should weight most.
Medium includes the softer published option (vs Medium-Firm), which can make contouring easier for lighter sleepers.
Motion isolation rated the same on both — neither has a transfer-disturbance edge.
Price Comparison (Queen)
| Mattress | Reference | Current | Sale? |
|---|---|---|---|
| Casper The One | $999 | $799 | Save $200 |
| Tempur-Pedic TEMPUR-ProAdapt Medium | $3,499 | $3,099 | Save $400 |
The Casper The One is the budget choice at $799 — $2,300 less than the Tempur-Pedic TEMPUR-ProAdapt Medium ($3,099). That's a 74% gap, which is worth weighing against the spec differences before deciding which delivers better value for your situation. Both are currently below their listed comparison prices.
Casper The One
Strengths
- ✓Three-layer foam build with Casper Core support
- ✓Strong motion isolation for an all-foam bed
- ✓Split King available
Considerations
- —No coil edge feel
- —No active Snow cooling package
- —Medium-firm feel is less plush than Cloud One
Tempur-Pedic TEMPUR-ProAdapt Medium
Strengths
- ✓Available in a medium feel
- ✓TEMPUR material is designed for pressure relief and motion absorption
- ✓90-night trial and 10-year limited warranty
Considerations
- —Premium pricing compared with mass-market foam mattresses
- —$175 plus tax return fee applies to direct mattress returns or exchanges during the trial
- —Dense TEMPUR foam has a slower-moving feel than latex or coil-first mattresses
Who Should Buy Which?
Choose the Casper The One if you…
- →Budget-conscious shoppers
- →Longer linked-seller trial
Choose the Tempur-Pedic TEMPUR-ProAdapt Medium if you…
- →Hot sleepers
- →Side sleepers / pressure relief