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 Published feel or standardized wording | Medium | Supportive Plush |
Queen Price Current / sale price | Check retailer | Check retailer |
Trial Period Terms from the linked seller | ✓ 100 nights at Amerisleep; 30-night minimum; free pickup | ✓ 365 nights at Saatva; no mandatory minimum; $99 return or exchange pickup fee |
Warranty | 20 years | Limited lifetime |
| Performance Ratings | ||
Cooling Hot sleepers | Very good | Very good |
Motion Isolation Partners, light sleepers | Excellent | Very good |
Pressure Relief Shoulder and hip cushioning | Very good | Excellent |
Edge Support Sit/sleep near edge | Average | Excellent |
Durability Long-term performance | Average | Excellent |
| Compatibility & Features | ||
Adjustable Base Head/foot elevation | ✓ Yes | ✓ Yes |
Split King Support Two Twin XL per couple | ✓ Yes | ✓ Yes |
Financing | Affirm, Klarna | Affirm |
| 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 Amerisleep → Buy with confidence 100-night risk-free sleep trial at Amerisleep | Full ReviewCheck price at Saatva → Buy with confidence 365-night direct-purchase comfort trial at Saatva |
Need Help Deciding?
For most sleepers, we recommend the Saatva Rx over the Amerisleep AS3. Our catalog rates it higher for pressure relief, edge support, durability; check current linked-seller prices and terms before deciding on 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 construction 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. The Amerisleep AS3 is the firmer of the two at 5/10 (medium), and the Saatva Rx sits at 3.5/10 (supportive plush) — a meaningful enough gap that sleeper position and weight should drive the choice. 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. The linked-seller trial periods aren't symmetrical either: the Saatva Rx is listed with 365 nights at Saatva; no mandatory minimum; $99 return or exchange pickup fee, versus 100 nights at Amerisleep; 30-night minimum; free pickup for the Amerisleep AS3.
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 Supportive Plush).
Medium includes the firmer published option (vs Supportive Plush), which may better suit shoppers who prefer more surface support.
Cooling rated the same on both — neither has a heat-management edge in our spec data.
better long-term durability and stronger perimeter / edge support — the two specs heavier sleepers should weigh most.
Supportive Plush includes the softer published option (vs Medium), 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.
Amerisleep AS3
Strengths
- ✓Three inches of Bio-Pur and two inches of HIVE reverse AS2's 2/3-inch comfort-to-transition ratio, giving AS3 more surface contour while keeping the same 12-inch height and seven-inch Bio-Core base
- ✓The five-zone HIVE cuts provide firmer response beneath the head, back, and legs and more give beneath the shoulders and hips according to Amerisleep's current construction description
- ✓Choose AS3 Foam over AS3 Hybrid for quieter, steadier all-foam contour and the lower current catalog price; choose Hybrid for spring response, support-core airflow, and a stronger perimeter
- ✓The solid-foam support core avoids connected coil movement, a practical construction advantage for couples who prioritize motion isolation over bounce
Considerations
- —Strict stomach sleepers and many sleepers over 230 pounds should compare the medium-firm AS2 or coil-supported AS3 Hybrid before choosing this medium foam design
- —All-foam AS3 has less perimeter reinforcement and through-bed airflow than AS3 Hybrid's eight-inch zoned pocketed-coil core
- —Amerisleep's seven-degree Refresh comparison, cooling, recovery, circulation, alignment, pressure, pain, motion, edge, and durability statements are manufacturer or construction evidence rather than SleepRanked lab results
Saatva Rx
Strengths
- ✓Deepest plush pressure-relief build in the Saatva line
- ✓Microcoils add close, responsive support
- ✓Graphite and phase-change materials manage heat
- ✓365-night direct-purchase home trial
Considerations
- —Single soft 3-4/10 feel
- —Higher price than Classic
- —Return or exchange pickup carries a $99 processing fee
Who Should Buy Which?
The Amerisleep AS3 is the better fit when:
- →You share the bed or wake easily when your partner moves.
- →You prefer firmer surface support.
The Saatva Rx is the better fit when:
- →You sleep on your side and prioritize stronger pressure-relief data.
- →You sit or sleep near the edge and want the stronger perimeter rating.
- →You want more time under the linked seller's trial or comfort policy.
- →You prefer a softer, more cushioned feel.