Pillow guide
Pillow Loft and Firmness: How to Choose
Loft is height; firmness is resistance. Getting the first one right matters more.
- Published
- 2026-01-15
- Updated
- 2026-01-15
Short answer
Loft is how tall the pillow holds your head; firmness is how much it resists sinking. Side sleepers generally need the most loft, back sleepers medium, stomach sleepers the least. A firmer pillow effectively keeps more of its loft under load, which is why the two get confused.
Loft by sleeping position and frame
| Position | Typical loft need | Why |
|---|---|---|
| Side | Medium to high | Must bridge shoulder width to head |
| Back | Low to medium | Only fills the neck curve |
| Stomach | Very low | Any height extends the neck |
| Combination | Medium, or adjustable | Compromise between two positions |
A simple way to check your loft
- Lie in your usual position on your usual mattress.
- Have someone photograph you straight on at bed level.
- Look at whether your head is tipped up, dropped down, or roughly in line with your spine.
- Tipped up means too much loft; dropped means too little.
Evidence
References
Manufacturer claims are attributed to the seller’s own pages. Access dates show when we last read them.
- NHS, Neck pain and stiff neck — accessed 2026-09-16 — general red flags and when to seek medical advice; not evidence for a pillow
Read our research method and editorial and corrections policy.
Keep reading
Related reading
- Memory Foam Pillow Pros and Cons
Where memory foam genuinely wins, and where another fill is the better answer.
- Pillows for Side Sleepers
Side sleeping is the position most sensitive to getting pillow height wrong.
- Pillows for Stomach Sleepers
Front sleeping already turns the neck. The pillow's job is to add as little height as possible.
- What Is an Ergonomic Pillow?
“Ergonomic” is a design claim, not a certification. Here is what it usually means in practice.