The Most Important Factor: Sleep Position

Your sleep position determines the loft (height/thickness) and firmness you need. A pillow that keeps your head and neck in line with your spine is the goal — regardless of material or price.

By Sleep Position

  1. 1

    Side sleepers — high loft, medium-firm to firm

    Side sleeping creates a large gap between your head and the mattress (the width of your shoulder). You need a thick, firm pillow to fill this gap and keep your neck aligned with your spine. A pillow that compresses too much lets your head drop, straining your neck. Look for: high loft (10–15cm), medium-firm to firm support, good shape retention.

  2. 2

    Back sleepers — medium loft, medium firmness

    Back sleeping requires a pillow that supports the natural curve of the neck without pushing the head too far forward. Medium loft (8–12cm) works for most back sleepers. Avoid very thick pillows that push the chin toward the chest, and flat pillows that let the head fall back.

  3. 3

    Stomach sleepers — low loft or no pillow

    Stomach sleeping is hard on the neck regardless of pillow — you must turn your head to breathe. A very flat, soft pillow (or no pillow) minimises the neck rotation. Consider transitioning to side sleeping if you frequently wake with neck pain.

Pillow Materials Compared

  • Memory foam: Contours to your head and neck, excellent pressure relief, good for side and back sleepers. Sleeps hot, heavier, cannot be washed.
  • Latex: Responsive, naturally cooling, durable, good support. More expensive but lasts 5+ years. Good for all sleep positions.
  • Down/feather: Soft, lightweight, adjustable (can add or remove filling). Not enough support for side sleepers. Great for stomach sleepers. Can be washed.
  • Microfibre/polyester: Budget-friendly, washable, hypoallergenic. Compresses faster than other materials, usually needs replacing every 1–2 years.
  • Buckwheat: Adjustable, very supportive, cooling, heavy. Rustling noise bothers some people. Very long lasting.
The fold testFold your pillow in half — if it springs back immediately it has good support remaining. If it stays folded it is time to replace it. Most pillows should be replaced every 1–2 years (synthetic) or 3–5 years (latex, memory foam, buckwheat).

Frequently Asked Questions

One good-quality pillow that suits your sleep position is better than multiple pillows trying to compensate for an ill-fitting one. Some people use a second pillow between the knees (side sleepers) or under the lower back (back sleepers) for additional spinal alignment support.
Yes — a pillow that is too high, too low, or too soft causes the head and neck to be held in an unnatural position for hours. This leads to muscle strain, stiffness and pain. If you consistently wake with neck pain and it resolves during the day, your pillow is a likely contributing factor.