The Helix Moonlight from Helix Sleep is a hybrid mattress with a soft feel best suited to lighter sleepers and side sleepers who need deep pressure relief.
Inside the Helix Moonlight
Helix Moonlight
12" tall
Helix Sleep · Hybrid · Firmness 4/10
Hover or tap a layer to slide it out
Layer breakdown
Polyfoam comfort layer
1.25″ thick · 1.8 lb/ft³ density
Measured at 1.8 lb/ft³ — solid polyfoam for average-weight sleepers, though heavier (200 lb+) sleepers would want closer to 2.2 lb/ft³ here.
Polyfoam transition layer
1″ thick · 2.5 lb/ft³ density
Measured at 2.5 lb/ft³ — high-density foam like this resists softening and body impressions, one of the strongest longevity signals in a build.
Polyfoam transition layer
1″ thick · 1.8 lb/ft³ density
Measured at 1.8 lb/ft³ — solid polyfoam for average-weight sleepers, though heavier (200 lb+) sleepers would want closer to 2 lb/ft³ here.
Polyfoam transition layer
0.75″ thick · 1.5 lb/ft³ density
1.5 lb/ft³ foam runs light, but a 0.75″ slab like this is too thin to drag durability down.
Coil support core
8″ thick
An open coil core is the best airflow a mattress can have — body heat vents out instead of building up.
Hover or tap a layer to see what it means for comfort and durability.
Total height12"
What it does well
Excellent pressure relief at the shoulders and hips
