# Diamond Flurry Lux (Medium) vs Helix Sunset Luxe: Firmness, Price, and Construction Compared

Canonical: https://squishmat.com/compare/diamond-flurry-lux-medium-vs-helix-sunset-luxe · Data refreshed 2026-10-02 · Source: SquishMat

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

## Full spec table

| Spec | Diamond Flurry Lux (Medium) | Helix Sunset Luxe |
| --- | --- | --- |
| Type | Hybrid | Hybrid |
| Firmness | 4/10 | 4/10 |
| Height | 13.5" | 13.5" |
| Queen price | $1,899 | $1,899 |
| Price range (all sizes) | $1,499–$2,099 | $1,899 |
| Foam densities (lb/ft³, top → bottom) | 1.5 / 4.0 / 1.5 / 1.5 | 1.5 / 1.8 / 4.0 / 1.8 / 1.5 / 1.5 |
| Coil gauge | 14 | — |
| Coil count (queen) | — | — |
| Cooling | 6/10 | 6/10 |
| Motion isolation | 6/10 | 6/10 |
| Edge support | 8/10 | 7/10 |
| Pressure relief | 8/10 | 9/10 |
| Support | 9/10 | 8/10 |
| Natural materials | 3/10 | 4/10 |
| Notable features | Cooling-focused hybrid, 4 PCF cooling comfort foam, Phase-change cover fabric, Medium-soft pressure relief | Softest Luxe pillow top, Deep sink-in pressure relief, Zoned lumbar support, TENCEL cooling cover |
| 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

**Diamond Flurry Lux (Medium):** The Diamond Flurry Lux (Medium) 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; Sturdy edges that make the full surface usable.

**Helix Sunset Luxe:** The Helix Sunset Luxe 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 Diamond Flurry Lux (Medium) or the Helix Sunset Luxe?

They rate the same: both are a 4/10 on the firmness scale, a soft feel best suited to lighter sleepers and side sleepers who need deep pressure relief.

### Which is cheaper, the Diamond Flurry Lux (Medium) or the Helix Sunset Luxe?

They cost the same in a queen: $1,899 as of 2026-10-02.

### What is the main construction difference between the Diamond Flurry Lux (Medium) and the Helix Sunset Luxe?

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

- [Diamond Flurry Lux (Medium) — full specs](https://squishmat.com/mattresses/diamond-flurry-lux-medium)
- [Helix Sunset Luxe — full specs](https://squishmat.com/mattresses/helix-sunset-luxe)
- [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).