# Amerisleep AS3 Hybrid vs Zoma Boost: Firmness, Price, and Construction Compared

Canonical: https://squishmat.com/compare/amerisleep-as3-hybrid-vs-zoma-boost · Data refreshed 2026-10-07 · Source: SquishMat

They're priced closely — the real difference is feel: the Zoma Boost is the firmer of the two.

## Full spec table

| Spec | Amerisleep AS3 Hybrid | Zoma Boost |
| --- | --- | --- |
| Type | Hybrid | Hybrid |
| Firmness | 5/10 | 6/10 |
| Height | 12" | 15" |
| Queen price | $1,349 | $1,349 |
| Price range (all sizes) | $1,349 | $1,012–$1,349 |
| Foam densities (lb/ft³, top → bottom) | 4.0 / 1.5 | 1.1 / 2.3 / 1.5 / 1.5 |
| Coil gauge | — | — |
| Coil count (queen) | — | — |
| Cooling | 6/10 | 6/10 |
| Motion isolation | 6/10 | 6/10 |
| Edge support | 7/10 | 7/10 |
| Pressure relief | 7/10 | 9/10 |
| Support | 8/10 | 8/10 |
| Natural materials | 3/10 | 3/10 |
| Notable features | Balanced medium feel for couples, Bio-Pur breathable memory foam comfort layer, 8" pocketed coil support core, Reinforced edge support | Athlete-focused luxury hybrid, Graphite-gel cooling memory foam, 9" reinforced coil core, Tall 15" plush profile |
| Spec source | NapLab | NapLab |

## Key differences

- The Zoma Boost is a step firmer (6/10 vs 5/10), so it suits sleepers who want a bit more pushback.

## Who each mattress is for

**Amerisleep AS3 Hybrid:** The Amerisleep AS3 Hybrid has a medium feel that works for many side and back sleepers, and for combination sleepers who switch positions. Strengths: Strong, even support that keeps the spine aligned.

**Zoma Boost:** The Zoma Boost has a medium feel that works for many side and back sleepers, and for combination sleepers who switch positions. Strengths: Excellent pressure relief at the shoulders and hips; Strong, even support that keeps the spine aligned.

## FAQ

### Which is firmer, the Amerisleep AS3 Hybrid or the Zoma Boost?

The Zoma Boost is firmer at 6/10 versus 5/10 for the Amerisleep AS3 Hybrid.

### Which is cheaper, the Amerisleep AS3 Hybrid or the Zoma Boost?

They cost the same in a queen: $1,349 as of 2026-10-07.

### What is the main construction difference between the Amerisleep AS3 Hybrid and the Zoma Boost?

Both are hybrid builds with similar published specs — the differences come down to feel and price rather than construction. The full layer-by-layer comparison is in the table above.

## More

- [Amerisleep AS3 Hybrid — full specs](https://squishmat.com/mattresses/amerisleep-as3-hybrid)
- [Zoma Boost — full specs](https://squishmat.com/mattresses/zoma-boost)
- [Comparison matrix: every mattress we track](https://squishmat.com/compare)

Free to cite with attribution — link to the canonical page. Where a datapoint traces to a third-party teardown, please credit the original measurer too (sources are cited per bed on https://squishmat.com/mattress-database).