# Glacier Summit vs Sealy Icon: Firmness, Price, and Construction Compared

Canonical: https://squishmat.com/compare/glacier-summit-vs-sealy-icon · Data refreshed 2026-10-06 · Source: SquishMat

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

## Full spec table

| Spec | Glacier Summit | Sealy Icon |
| --- | --- | --- |
| Type | Hybrid | Hybrid |
| Firmness | 6/10 | 6/10 |
| Height | 13" | 12.5" |
| Queen price | $959 | $960 |
| Price range (all sizes) | $639–$1,199 | $900–$1,360 |
| Foam densities (lb/ft³, top → bottom) | 1.8 / 2.5 / 1.8 | 2.2 / 2.2 / 1.9 |
| Coil gauge | 15 | 14.5 |
| Coil count (queen) | — | — |
| Cooling | 6/10 | 7/10 |
| Motion isolation | 6/10 | 6/10 |
| Edge support | 7/10 | 7/10 |
| Pressure relief | 9/10 | 7/10 |
| Support | 8/10 | 8/10 |
| Natural materials | 3/10 | 3/10 |
| Notable features | Mid-tier cooling hybrid, 2" memory foam comfort layer, glacierTech Elite cover, Six-layer cooling design | Costco-exclusive value hybrid, Gel memory foam comfort layer, Pocketed coil support core, Strong price-to-build ratio |
| Spec source | NapLab | NapLab |

## Key differences

- The Sealy Icon runs thicker support coils (14.5-gauge vs 15-gauge — lower gauge means thicker, firmer wire).

## 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.

**Sealy Icon:** The Sealy Icon 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.

## FAQ

### Which is firmer, the Glacier Summit or the Sealy Icon?

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 Sealy Icon?

The Glacier Summit is cheaper in a queen: $959 versus $960, as of 2026-10-06.

### What is the main construction difference between the Glacier Summit and the Sealy Icon?

Both are hybrid builds; the biggest spec difference is the support core — the Sealy Icon uses thicker coils. Full specs are in the table above.

## More

- [Glacier Summit — full specs](https://squishmat.com/mattresses/glacier-summit)
- [Sealy Icon — full specs](https://squishmat.com/mattresses/sealy-icon)
- [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).