# Casper Snow vs SONU Sleep System Hybrid: Firmness, Price, and Construction Compared

Canonical: https://squishmat.com/compare/casper-snow-vs-sonu-sleep-system-hybrid · Data refreshed 2026-09-19 · Source: SquishMat

The SONU Sleep System Hybrid is $121 cheaper in a queen; the table below shows what the price gap buys.

## Full spec table

| Spec | Casper Snow | SONU Sleep System Hybrid |
| --- | --- | --- |
| Type | Hybrid | Hybrid |
| Firmness | 5/10 | 4/10 |
| Height | 11.5" | 14" |
| Queen price | $2,720 | $2,599 |
| Price range (all sizes) | $2,120–$3,495 | $1,599–$3,199 |
| Foam densities (lb/ft³, top → bottom) | 2.7 / 2.8 / 1.6 | 1.6 / 2.2 / 1.8 |
| Coil gauge | 15.5 | 14.5 |
| Coil count (queen) | — | — |
| Cooling | 6/10 | 6/10 |
| Motion isolation | 6/10 | 6/10 |
| Edge support | 7/10 | 7/10 |
| Pressure relief | 7/10 | 8/10 |
| Support | 8/10 | 8/10 |
| Natural materials | 3/10 | 3/10 |
| Notable features | Cooling-focused hybrid design, HeatDelete cooling bands, Dense memory foam contouring, Medium balanced feel | Patented comfort channel for side sleepers, Arms-in cutout sleeping surface, Tested 2.2 PCF comfort foam, 14.5-gauge coil support |
| Spec source | NapLab | NapLab |

## Key differences

- The Casper Snow is a step firmer (5/10 vs 4/10), so it suits sleepers who want a bit more pushback.
- The SONU Sleep System Hybrid is $121 cheaper in a queen ($2,599 vs $2,720 as of 2026-09-19) than the Casper Snow.
- The SONU Sleep System Hybrid runs thicker support coils (14.5-gauge vs 15.5-gauge — lower gauge means thicker, firmer wire).

## Who each mattress is for

**Casper Snow:** The Casper Snow 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.

**SONU Sleep System Hybrid:** The SONU Sleep System Hybrid has a soft feel best suited to lighter sleepers and side sleepers who need deep pressure relief. Strengths: Excellent pressure relief at the shoulders and hips; Strong, even support that keeps the spine aligned.

## FAQ

### Which is firmer, the Casper Snow or the SONU Sleep System Hybrid?

The Casper Snow is firmer at 5/10 versus 4/10 for the SONU Sleep System Hybrid.

### Which is cheaper, the Casper Snow or the SONU Sleep System Hybrid?

The SONU Sleep System Hybrid is cheaper in a queen: $2,599 versus $2,720, as of 2026-09-19.

### What is the main construction difference between the Casper Snow and the SONU Sleep System Hybrid?

Both are hybrid builds; the biggest spec difference is the support core — the SONU Sleep System Hybrid uses thicker coils. Full specs are in the table above.

## More

- [Casper Snow — full specs](https://squishmat.com/mattresses/casper-snow)
- [SONU Sleep System Hybrid — full specs](https://squishmat.com/mattresses/sonu-sleep-system-hybrid)
- [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).