Sleep Positions and What They Ask of a Pillow
Your default position sets the distance between your head and the mattress. Get that distance right and most other pillow decisions become smaller.
Very few people stay in one position all night, but most have a position they fall asleep in and return to. That position is the useful starting point, because it determines the gap a pillow has to fill.
Mattress firmness matters here too: a softer mattress lets your shoulder sink, which narrows the gap and reduces the loft you need.
- Most commonSide sleepingShoulder width creates the widest gap. Usually the highest loft requirement.
- PositionBack sleepingA medium gap, with the neck curve as the part most often left unsupported.
- PositionStomach sleepingThe smallest gap of all — often best served by a very thin pillow.
- PositionCombination sleepingChanging position overnight makes adaptability more useful than a perfect single-position fit.
How position translates into loft
Our pillow height guide explains how to measure your own gap rather than relying on "low / medium / high" labels, which are not standardised between brands.
Last updated September 1, 2026