Amerisleep AS2 vs Casper The Casper
Detailed side-by-side comparison — pricing, specs, performance ratings, and our pick.
| Feature | Amerisleep AS2 | Casper The Casper |
|---|---|---|
| Overview | ||
Type | Memory Foam | Memory Foam |
Firmness 1 = softest, 10 = firmest | 6.5 / 10 | 6 / 10 |
Queen Price Current / sale price | $1,049 | $1,095 |
Trial Period Return window | 100 nights | 100 nights |
Warranty | 20 years | 10 years |
| Performance Ratings | ||
Cooling Hot sleepers | 8/10 | Moderate |
Motion Isolation Partners, light sleepers | 9/10 | Excellent |
Pressure Relief Hip/shoulder pain | 7/10 | Good |
Edge Support Sit/sleep near edge | 6/10 | Fair |
Durability Long-term performance | 5/10 | Good |
| 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, Klarna | Affirm |
| Materials & Safety | ||
Certifications Organic / non-toxic | CertiPUR-US | CertiPUR-US |
Off-Gassing New-foam smell concern | CertiPUR-US certified foam | CertiPUR-US certified foam |
| Best For | ||
Ideal sleeper profiles |
|
|
| Actions | ||
Need Help Deciding?
For most sleepers, we recommend the Casper The Casper over the Amerisleep AS2. It scores higher in cooling, motion isolation, pressure relief and delivers stronger overall value. The Amerisleep AS2 is the better choice only if you have a strong preference for that brand's specific feel or design.
Amerisleep AS2 vs Casper The Casper: What Actually Differs
Both the Amerisleep AS2 and Casper The Casper are memory foam mattresses, so the real differences come down to firmness tuning, performance ratings, and price rather than construction type. The Amerisleep AS2 stands 12" tall versus 11" for the Casper The Casper — 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. Queen pricing lands within $46 of each other ($1,049 vs $1,095), so price is essentially neutral — pick on feel and features rather than budget.
Which Is Better For Your Sleep Style?
Pressure-relief data not available for one or both mattresses — spec not available.
Firmness of 6/10 is closer to the medium-firm sweet spot back sleepers need for lumbar support (vs 6.5/10).
Firmer at 6.5/10 vs 6/10 — stomach sleepers need the extra support to keep the pelvis from sinking and arching the lower back.
Cooling rating not available for one or both mattresses — spec not available.
Durability and edge-support ratings not available — spec not available.
Softer at 6/10 vs 6.5/10 — lighter sleepers compress less, so they typically need the softer of two options to get proper contouring.
Motion-isolation data not available for one or both mattresses — spec not available.
Price Comparison (Queen)
| Mattress | MSRP | Current | Sale? |
|---|---|---|---|
| Amerisleep AS2 | $1,549 | $1,049 | Save $500 |
| Casper The Casper | $1,095 | $1,095 | At MSRP |
At current pricing the two land within $46of each other, so price isn't the deciding factor — choose on feel, firmness, and the performance gaps called out above. Only the Amerisleep AS2 is on sale right now.
Amerisleep AS2
Strengths
- ✓Medium-firm support for back and stomach sleepers
- ✓Bio-Pur foam is more responsive and breathable than conventional memory foam
- ✓HIVE zoning adds targeted cushion and support
Considerations
- —May feel firm for side sleepers who want deep shoulder relief
- —All-foam build has less edge reinforcement than Amerisleep hybrid models
- —Split King is sold, but no separate split-king-dual SKU is published
Casper The Casper
Strengths
- ✓Well-known brand
- ✓Zoned support
- ✓Good motion isolation
- ✓Available in stores
Considerations
- —Shorter trial vs competitors
- —Moderate cooling only
Who Should Buy Which?
Choose the Amerisleep AS2 if you…
- →Shoppers who prioritize brand reputation and style
Choose the Casper The Casper if you…
- →Hot sleepers
- →Couples / light sleepers
- →Side sleepers / pressure relief