Amerisleep AS3 vs Saatva Rx
Detailed side-by-side comparison — pricing, specs, performance ratings, and our pick.
| Feature | Amerisleep AS3 | Saatva Rx |
|---|---|---|
| Overview | ||
Type | Memory Foam | Hybrid |
Firmness 1 = softest, 10 = firmest | 5.5 / 10 | 5.5 / 10 |
Queen Price Current / sale price | $1,749 | $1,999 |
Trial Period Return window | 100 nights | 365 nights |
Warranty | 20 years | Lifetime |
| Performance Ratings | ||
Cooling Hot sleepers | 8/10 | High |
Motion Isolation Partners, light sleepers | 9/10 | Good |
Pressure Relief Hip/shoulder pain | 8/10 | Excellent |
Edge Support Sit/sleep near edge | 6/10 | Excellent |
Durability Long-term performance | 5/10 | 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, Klarna | Affirm |
| Materials & Safety | ||
Certifications Organic / non-toxic | CertiPUR-US | CertiPUR-US, GREENGUARD Gold |
Off-Gassing New-foam smell concern | CertiPUR-US certified foam | CertiPUR-US certified foam |
| Best For | ||
Ideal sleeper profiles |
|
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| Actions | ||
Need Help Deciding?
For most sleepers, we recommend the Saatva Rx over the Amerisleep AS3. It scores higher in motion isolation, pressure relief, edge support and delivers stronger overall value. The Amerisleep AS3 is the better choice only if you have a strong preference for that brand's specific feel or design.
Amerisleep AS3 vs Saatva Rx: What Actually Differs
The Amerisleep AS3 is a memory foam build, while the Saatva Rx is a hybrid — that single difference drives most of the cooling, motion, and feel decisions below. The Saatva Rx stands 15" tall versus 12" for the Amerisleep AS3 — a 3.0" gap that matters if you need deep-pocket sheets or are pairing with an adjustable base. Both sit at roughly 5.5/10 on the firmness scale — a medium feel — so neither one is the answer if you need a dramatically different support level. On a Queen, the Amerisleep AS3 runs $1,749 versus $1,999 for the Saatva Rx — roughly $250 (13%) less, which is enough to factor into the decision unless the pricier model wins clearly on the specs you care about. Trial periods aren't symmetrical either: the Saatva Rx ships with a 365-night sleep trial versus 100 nights for the Amerisleep AS3, giving you a longer in-home runway to send it back if the feel doesn't land.
Which Is Better For Your Sleep Style?
Pressure-relief data not available for one or both mattresses — spec not available.
Both fall in the medium-firm zone back sleepers prefer (5.5/10 vs 5.5/10) — either works.
Effectively the same firmness (5.5/10 vs 5.5/10). Stomach sleepers generally want 7+/10 — neither is ideal if both rate lower.
Cooling rating not available for one or both mattresses — spec not available.
Durability and edge-support ratings not available — spec not available.
Both have similar firmness and pressure-relief profile — either works.
Motion-isolation data not available for one or both mattresses — spec not available.
Price Comparison (Queen)
| Mattress | MSRP | Current | Sale? |
|---|---|---|---|
| Amerisleep AS3 | $1,749 | $1,749 | At MSRP |
| Saatva Rx | $2,049 | $1,999 | Save $50 |
The Amerisleep AS3 is the budget choice at $1,749 — $250 less than the Saatva Rx ($1,999). That's a 13% gap, which is worth weighing against the spec differences before deciding which delivers better value for your situation. Only the Saatva Rx is on sale right now.
Amerisleep AS3
Strengths
- ✓Medium feel fits a broad sleeper range
- ✓Strong motion isolation for couples
- ✓HIVE zoning gives extra shoulder and hip pressure relief
Considerations
- —Current page payload did not publish per-size sale prices, so sale fields are intentionally NULL
- —All-foam edge support is more modest than AS3 Hybrid
- —Shoppers who want a springy feel may prefer the hybrid
Saatva Rx
Strengths
- ✓Designed for back/joint pain relief
- ✓Patented lumbar zone support
- ✓365-night trial
- ✓Lifetime warranty
Considerations
- —Top-tier model in the lineup — premium specifications and materials compared to sibling models
- —Only one firmness level
- —Heavy at 15 inches
Who Should Buy Which?
Choose the Saatva Rx if you…
- →Couples / light sleepers
- →Side sleepers / pressure relief
- →Sitting near the edge
- →Trial-period sensitive buyers