Signature Hybrid (Medium) vs Nolah Evolution 15 (Luxury Firm)
These two are close substitutes on paper — the spec table below shows where they differ. Every number below comes from published teardowns and spec sheets (see our methodology); prices are queen-size, refreshed 2026-09-04.
Signature Hybrid (Medium) vs Nolah Evolution 15 (Luxury Firm): full spec table
| Spec | Signature Hybrid (Medium) | Nolah Evolution 15 (Luxury Firm) |
|---|---|---|
| Type | Hybrid | Hybrid |
| Firmness | 6/10 | 6/10 |
| Height | 14.5" | 15" |
| Queen price | $1,465 | $1,480 |
| Price range (all sizes) | $959–$1,865 | $1,047–$1,654 |
| Foam densities (lb/ft³, top → bottom) | 1.6 / 2.3 / 2.3 / 1.8 / 1.5 | 1.6 / 3.6 / 2.2 / 1.5 / 1.5 / 1.5 |
| Coil gauge | 13 | 13.5 |
| Coil count (queen) | — | — |
| Cooling | 6/10 | 6/10 |
| Motion isolation | 6/10 | 6/10 |
| Edge support | 8/10 | 8/10 |
| Pressure relief | 8/10 | 9/10 |
| Support | 9/10 | 8/10 |
| Natural materials | 4/10 | 4/10 |
| Notable features | TitanFlex responsive foam, Ascension pocketed coil system, Multiple firmness options, Cooling cover | 15-inch luxury hybrid build, Nolah AirFoam pressure relief, Zoned HDMax support coils, Reinforced edge support |
| Spec source | NapLab | NapLab |
Key differences
- The Signature Hybrid (Medium) runs thicker support coils (13-gauge vs 13.5-gauge — lower gauge means thicker, firmer wire).
Who the Signature Hybrid (Medium) is for
The Signature Hybrid (Medium) has a medium feel that works for many side and back sleepers, and for combination sleepers who switch positions.
- Excellent pressure relief at the shoulders and hips
- Strong, even support that keeps the spine aligned
- Sturdy edges that make the full surface usable
Who the Nolah Evolution 15 (Luxury Firm) is for
The Nolah Evolution 15 (Luxury Firm) has a medium feel that works for many side and back sleepers, and for combination sleepers who switch positions.
- Excellent pressure relief at the shoulders and hips
- Strong, even support that keeps the spine aligned
- Sturdy edges that make the full surface usable
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Frequently asked questions
Which is firmer, the Signature Hybrid (Medium) or the Nolah Evolution 15 (Luxury Firm)?
They rate the same: both are a 6/10 on the firmness scale, a medium feel that works for many side and back sleepers, and for combination sleepers who switch positions.
Which is cheaper, the Signature Hybrid (Medium) or the Nolah Evolution 15 (Luxury Firm)?
The Signature Hybrid (Medium) is cheaper in a queen: $1,465 versus $1,480, as of 2026-09-04.
What is the main construction difference between the Signature Hybrid (Medium) and the Nolah Evolution 15 (Luxury Firm)?
Both are hybrid builds; the biggest spec difference is the support core — the Signature Hybrid (Medium) uses thicker coils. Full specs are in the table above.
See how both stack up against every bed we track in the full comparison matrix, or dig into the complete specs for the Signature Hybrid (Medium) and the Nolah Evolution 15 (Luxury Firm).