# Amerisleep AS3 Hybrid vs Signature Hybrid (Medium): Firmness, Price, and Construction Compared

Canonical: https://squishmat.com/compare/amerisleep-as3-hybrid-vs-brooklyn-bedding-signature-hybrid-medium · Data refreshed 2026-10-23 · Source: SquishMat

They're priced closely — the real difference is feel: the Signature Hybrid (Medium) is the firmer of the two.

## Full spec table

| Spec | Amerisleep AS3 Hybrid | Signature Hybrid (Medium) |
| --- | --- | --- |
| Type | Hybrid | Hybrid |
| Firmness | 5/10 | 6/10 |
| Height | 12" | 14.5" |
| Queen price | $1,449 | $1,465 |
| Price range (all sizes) | $999–$1,449 | $959–$1,865 |
| Foam densities (lb/ft³, top → bottom) | 4.0 / 1.5 | 1.6 / 2.3 / 2.3 / 1.8 / 1.5 |
| Coil gauge | — | 13 |
| Coil count (queen) | — | — |
| Cooling | 6/10 | 6/10 |
| Motion isolation | 6/10 | 6/10 |
| Edge support | 7/10 | 8/10 |
| Pressure relief | 7/10 | 8/10 |
| Support | 8/10 | 9/10 |
| Natural materials | 3/10 | 4/10 |
| Notable features | Balanced medium feel for couples, Bio-Pur breathable memory foam comfort layer, 8" pocketed coil support core, Reinforced edge support | TitanFlex responsive foam, Ascension pocketed coil system, Multiple firmness options, Cooling cover |
| Spec source | NapLab | NapLab |

## Key differences

- The Signature Hybrid (Medium) 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.

**Signature Hybrid (Medium):** The Signature Hybrid (Medium) 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; Sturdy edges that make the full surface usable.

## FAQ

### Which is firmer, the Amerisleep AS3 Hybrid or the Signature Hybrid (Medium)?

The Signature Hybrid (Medium) is firmer at 6/10 versus 5/10 for the Amerisleep AS3 Hybrid.

### Which is cheaper, the Amerisleep AS3 Hybrid or the Signature Hybrid (Medium)?

The Amerisleep AS3 Hybrid is cheaper in a queen: $1,449 versus $1,465, as of 2026-10-23.

### What is the main construction difference between the Amerisleep AS3 Hybrid and the Signature Hybrid (Medium)?

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)
- [Signature Hybrid (Medium) — full specs](https://squishmat.com/mattresses/brooklyn-bedding-signature-hybrid-medium)
- [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).