- Build
- Dual-coil innerspring hybrid
- Height
- 11.5 or 14.5 in
- Feel
- Plush Soft 3 / Luxury Firm 5–7 / Firm 8
- Build
- Bio-Pur foam over a coil-based support system
- Height
- 12 inches
- Feel
- Medium
Normalized view
The essential differences
On a smaller screen, swipe sideways to compare every mattress.
Decision map
Which documented difference matters?
- Construction record
- Saatva publishes a dual-coil architecture; Amerisleep documents Bio-Pur foam over a coil support system
- Independent evidence boundary
- Located AS3 performance testing covers the all-foam sibling and is not assigned to the Hybrid
- Delivery
- Saatva includes in-room setup; Amerisleep's Hybrid follows a compressed direct-shipping model
- Winner
- Not declared because the records do not provide a common configuration-matched physical test
Evidence boundary
What this comparison cannot tell you
It cannot determine which mattress your body will find most comfortable, predict individual pain relief, or establish long-term defect rates. Those outcomes require physical, version-matched testing and representative owner data.
It can show which build is documented, how firmness choices differ, what exiting the trial costs, which warranty rules apply, and what the companies still do not disclose.
Detailed research
Check each mattress before deciding
Saatva Classic
Saatva’s flagship uses two spring units, a quilted Euro pillow top, foam edge support, and a targeted lumbar-zone treatment.
- More than 1,000 coils in full size and larger on the current product page
- Dual-coil architecture
AS3 Hybrid · Medium · 12 inches
Amerisleep's current product page identifies one AS3 product family with separate all-foam and Hybrid material choices. Both are labeled Medium and 12 inches, but the Hybrid replaces the foam support core with a coil-based support system, so the two versions should not share configuration-specific performance conclusions. Official sources establish the current identity, broad materials, 100-night trial, and 20-year limited warranty. The located Sleep Foundation testing describes the all-foam AS3, so its motion, cooling, edge, and sleeper-fit findings are retained only as sibling-family context and are not assigned to this Hybrid.
- Exact record: Amerisleep AS3 Hybrid · Medium · 12 inches
- Family: AS3