Amerisleep AS3 vs Saatva Rx
Detailed side-by-side comparison — pricing, specs, performance ratings, and our pick.
Pricing unavailable — visit Amerisleep for current rates
Check current price at Amerisleep →| Feature | Amerisleep AS3 | Saatva Rx |
|---|---|---|
| Overview | ||
Type | Memory Foam | Hybrid |
Firmness 1 = softest, 10 = firmest | 6 / 10 | 5.5 / 10 |
Queen Price Current / sale price | Check retailer | $1,999 |
Trial Period Return window | 100 nights | 365 nights |
Warranty | 20 years | Lifetime |
| Performance Ratings | ||
Cooling Hot sleepers | Moderate | High |
Motion Isolation Partners, light sleepers | Good | Good |
Pressure Relief Hip/shoulder pain | Good | Excellent |
Edge Support Sit/sleep near edge | Fair | Excellent |
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 | 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 pressure relief, edge support, durability and delivers stronger overall value. The Amerisleep AS3 is the better choice only if you sleep hot and cooling is your top priority.
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 6/10 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 edge support: the Saatva Rx rates noticeably higher than the Amerisleep AS3, which is the deciding factor if that dimension is high on your list. On a Queen, the Amerisleep AS3 runs $999 versus $1,999 for the Saatva Rx — roughly $1,000 (50%) 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?
Higher pressure-relief rating, which is what protects hip and shoulder contact points in the side position.
Firmness of 6/10 is closer to the medium-firm sweet spot back sleepers need for lumbar support (vs 5.5/10).
Firmer at 6/10 vs 5.5/10 — 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.
better long-term durability and stronger perimeter / edge support — the two specs heavier sleepers should weight most.
Softer at 5.5/10 vs 6/10 — lighter sleepers compress less, so they typically need the softer of two options to get proper contouring.
Motion isolation rated the same on both — neither has a transfer-disturbance edge.
Price Comparison (Queen)
| Mattress | MSRP | Current | Sale? |
|---|---|---|---|
| Amerisleep AS3 | $1,499 | $999 | Save $500 |
| Saatva Rx | $1,999 | $1,999 | At MSRP |
The Amerisleep AS3 is the budget choice at $999 — $1,000 less than the Saatva Rx ($1,999). That's a 50% gap, which is worth weighing against the spec differences before deciding which delivers better value for your situation. Only the Amerisleep AS3 is on sale right now.
Amerisleep AS3
Strengths
- ✓Plant-based Bio-Pur foam
- ✓20-year warranty
- ✓Good pressure relief
- ✓Responsive feel
Considerations
- —Higher MSRP (frequent sales)
- —100-night trial (shorter than some)
- —Limited edge support
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…
- →Side sleepers / pressure relief
- →Sitting near the edge
- →Trial-period sensitive buyers
- →Organic / non-toxic priority shoppers