Allswell 10-inch Hybrid vs Casper The One
Detailed side-by-side comparison — pricing, specs, performance ratings, and our pick.
| Feature | Allswell 10-inch Hybrid | Casper The One |
|---|---|---|
| Overview | ||
Type | Hybrid | Memory Foam |
Firmness Published feel or standardized wording | Medium-Firm | Medium-Firm |
Queen Price Current / sale price | Queen sold out | Check retailer |
Trial Period Terms from the linked seller | Check Walmart return policy | ✓ 100 nights at Casper; returns after 30 nights; free eligible return |
Warranty | 10 years | 10 years |
| Performance Ratings | ||
Cooling Hot sleepers | Good | Average |
Motion Isolation Partners, light sleepers | Good | Excellent |
Pressure Relief Shoulder and hip cushioning | Average | Good |
Edge Support Sit/sleep near edge | Average | Fair |
Durability Long-term performance | Average | Good |
| Compatibility & Features | ||
Adjustable Base Head/foot elevation | ✓ Yes | ✓ Yes |
Split King Support Two Twin XL per couple | — | ✓ Yes |
Financing | Available | Affirm |
| Materials & Certification Scope | ||
Listed certifications / claims Check model and material scope | None listed | None listed |
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 |
|
|
| Actions | ||
Need Help Deciding?
For most sleepers, we recommend the Casper The One over the Allswell 10-inch Hybrid. Our catalog rates it higher for motion isolation, pressure relief, durability; check current linked-seller prices and terms before deciding on value. The Allswell 10-inch Hybrid is the better choice only if you sleep hot and cooling is your top priority.
Allswell 10-inch Hybrid vs Casper The One: What Actually Differs
The Allswell 10-inch Hybrid is a hybrid build, while the Casper The One is a memory foam — that construction difference drives most of the cooling, motion, and feel decisions below. The Casper The One stands 11" tall versus 10" for the Allswell 10-inch Hybrid — a 1.0" gap that matters if you need deep-pocket sheets or are pairing with an adjustable base. Their firmness is close but not identical: the Allswell 10-inch Hybrid is 7/10 and the Casper The One is 6.5/10. Both land near a medium-firm feel, so the half-point difference is less decisive than their construction and pressure response. The single largest performance gap is in motion isolation: the Casper The One rates noticeably higher than the Allswell 10-inch Hybrid, which is the deciding factor if that dimension is high on your list.
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-Firm includes the option closest to a balanced medium feel for back sleepers (vs Medium-Firm).
Medium-Firm includes the firmer published option (vs Medium-Firm), 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 weigh most.
Medium-Firm includes the softer published option (vs Medium-Firm), which can make contouring easier for lighter sleepers.
Higher motion-isolation rating, which means less disturbance when a partner moves or gets out of bed.
Allswell 10-inch Hybrid
Strengths
- ✓Lowest-priced current Allswell hybrid
- ✓Cooling gel memory foam and a cool-to-touch top fabric
- ✓Pocketed coils add airflow and reduce motion transfer
- ✓Current Walmart listing includes free shipping
Considerations
- —Only Twin, Twin XL, and Queen showed current in-stock prices when verified
- —Firm feel provides less cushioning than the taller Relax and Supreme
- —Walmart return terms apply instead of a dedicated Allswell sleep trial
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
Who Should Buy Which?
The Allswell 10-inch Hybrid is the better fit when:
- →You sleep hot and want the stronger cooling rating.
- →You sit or sleep near the edge and want the stronger perimeter rating.
The Casper The One is the better fit when:
- →You share the bed or wake easily when your partner moves.
- →You sleep on your side and prioritize stronger pressure-relief data.