Your position sets the range.
Side sleepers need shoulders and hips to sink in; stomach sleepers need the hips held up. Each position gets its own comfort range on a 1–10 scale (here for 130–179 lb).
- Side: 3 to 6 out of 10
- Back: 5 to 8 out of 10
- Stomach: 6 to 9 out of 10
- Combination: 5 to 8 out of 10










