# Glacier Summit vs Helix Dusk: Firmness, Price, and Construction Compared

Canonical: https://squishmat.com/compare/glacier-summit-vs-helix-dusk · 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 | Glacier Summit | Helix Dusk |
| --- | --- | --- |
| Type | Hybrid | Hybrid |
| Firmness | 6/10 | 6/10 |
| Height | 13" | 12" |
| Queen price | $1,199 | $1,199 |
| Price range (all sizes) | $799–$1,499 | $849–$1,549 |
| Foam densities (lb/ft³, top → bottom) | 1.8 / 2.5 / 1.8 | 1.8 / 2.5 / 1.5 / 1.5 |
| Coil gauge | 15 | — |
| Coil count (queen) | — | — |
| Cooling | 6/10 | 6/10 |
| Motion isolation | 6/10 | 6/10 |
| Edge support | 7/10 | 8/10 |
| Pressure relief | 9/10 | 7/10 |
| Support | 8/10 | 9/10 |
| Natural materials | 3/10 | 4/10 |
| Notable features | Mid-tier cooling hybrid, 2" memory foam comfort layer, glacierTech Elite cover, Six-layer cooling design | Medium feel tuned for back and combo sleepers, Zoned wrapped coil support, Balanced foam comfort layer |
| Spec source | NapLab | NapLab |

## Key differences

- On the published specs these two are close substitutes — similar firmness, price, and construction. Decide on current price, trial length, and returns policy.

## Who each mattress is for

**Glacier Summit:** The Glacier Summit 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.

**Helix Dusk:** The Helix Dusk 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; Sturdy edges that make the full surface usable.

## FAQ

### Which is firmer, the Glacier Summit or the Helix Dusk?

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 Glacier Summit or the Helix Dusk?

They cost the same in a queen: $1,199 as of 2026-09-15.

### What is the main construction difference between the Glacier Summit and the Helix Dusk?

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

- [Glacier Summit — full specs](https://squishmat.com/mattresses/glacier-summit)
- [Helix Dusk — full specs](https://squishmat.com/mattresses/helix-dusk)
- [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).