# Aviya (Firm) vs Nolah Evolution 15 (Firm): Firmness, Price, and Construction Compared

Canonical: https://squishmat.com/compare/aviya-firm-vs-nolah-evolution-15-firm · Data refreshed 2026-09-15 · Source: SquishMat

These two are close substitutes on paper — the spec table below shows where they differ.

## Full spec table

| Spec | Aviya (Firm) | Nolah Evolution 15 (Firm) |
| --- | --- | --- |
| Type | Innerspring | Hybrid |
| Firmness | 8/10 | 8/10 |
| Height | 12" | 15" |
| Queen price | $1,549 | $1,594 |
| Price range (all sizes) | $1,149–$1,849 | $1,127–$1,781 |
| Foam densities (lb/ft³, top → bottom) | 1.8 / 1.8 / 1.8 | 1.6 / 1.8 / 1.5 / 1.5 / 1.5 / 1.5 |
| Coil gauge | 15 | 13.5 |
| Coil count (queen) | — | — |
| Cooling | 7/10 | 6/10 |
| Motion isolation | 6/10 | 6/10 |
| Edge support | 7/10 | 8/10 |
| Pressure relief | 6/10 | 9/10 |
| Support | 8/10 | 8/10 |
| Natural materials | 4/10 | 4/10 |
| Notable features | Traditional innerspring with 800-coil zoned unit (queen), 15-gauge individually wrapped coils, 1.8 lb bio-based soy-blend comfort foams, High-density foam edge rail perimeter | 15-inch luxury hybrid build, Nolah AirFoam pressure relief, Zoned HDMax support coils, Reinforced edge support |
| Spec source | Manufacturer | NapLab |

## Key differences

- The Nolah Evolution 15 (Firm) runs thicker support coils (13.5-gauge vs 15-gauge — lower gauge means thicker, firmer wire).

## Who each mattress is for

**Aviya (Firm):** The Aviya (Firm) has a firm feel suited to stomach sleepers and heavier sleepers who need to keep their hips lifted. Strengths: Strong, even support that keeps the spine aligned.

**Nolah Evolution 15 (Firm):** The Nolah Evolution 15 (Firm) has a firm feel suited to stomach sleepers and heavier sleepers who need to keep their hips lifted. 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 Aviya (Firm) or the Nolah Evolution 15 (Firm)?

They rate the same: both are a 8/10 on the firmness scale, a firm feel suited to stomach sleepers and heavier sleepers who need to keep their hips lifted.

### Which is cheaper, the Aviya (Firm) or the Nolah Evolution 15 (Firm)?

The Aviya (Firm) is cheaper in a queen: $1,549 versus $1,594, as of 2026-09-15.

### What is the main construction difference between the Aviya (Firm) and the Nolah Evolution 15 (Firm)?

The Aviya (Firm) is a innerspring build while the Nolah Evolution 15 (Firm) is a hybrid build — see the layer-by-layer table above for how their foams and coils differ.

## More

- [Aviya (Firm) — full specs](https://squishmat.com/mattresses/aviya-firm)
- [Nolah Evolution 15 (Firm) — full specs](https://squishmat.com/mattresses/nolah-evolution-15-firm)
- [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).