How often should you replace your pillow?

Also read: How to choose the ideal pillow (guide)

You replace your toothbrush every three months. But the pillow, where you rest your face for eight hours a night, stays for years — often until it has lost its shape. It's one of the cheapest things to renew and one with the biggest impact on comfort and sleep hygiene, and yet it's the one most often put off.

Why a pillow has a shelf life

With daily use, the filling loses structure: it clumps, and loses height and support. A pillow that no longer supports the neck lets the head fall out of alignment — and that's where the neck tension and the "cricks" you wake up with come from.

There's also the hygiene side. The pillow absorbs sweat and skin cells, which feed dust mites. That's why many old pillows take on a yellowish tone, and why sensitive people wake up with a blocked nose. Washing the pillowcase helps, but it doesn't solve what's inside the pillow.

The fold test (30 seconds)

A simple way to know if it's time: fold the pillow in half and let go.

  • Does it quickly spring back to its original shape? It still has life in it.
  • Does it stay folded, limp, unresponsive? It has lost its support — time to replace it.

For down/feather pillows, a variant: fold it in three and place a light weight on top; if it doesn't "push" the weight back, the filling no longer holds up.

Practical replacement rule

  • Most pillows should be assessed between 1 and 3 years, depending on the material and use.
  • Signs to replace it now: it loses its shape, has stains or a smell that won't go away, you wake up with a tense neck, or you have sneezing/congestion in the morning.
  • Protection that extends its life: a washable pillow protector reduces mite and sweat build-up and helps the pillow last longer and better.

The right pillow depends on how you sleep

Replacing it is your chance to get it right — because the best pillow is the one that respects your sleep position:

  • Side sleepers: need height and firmness to fill the gap between the shoulder and head and keep the neck aligned (e.g. Kaiteki).
  • Back sleepers: a medium height, one that supports the neck curve without pushing the head forward.
  • Front sleepers: a low, soft pillow, so as not to strain the neck.
  • Those who sleep hot: a material that helps regulate temperature is worth it (e.g. Shinsen).

There's no "universal" height: there's the one that matches your body. The two-minute pillow diagnosis helps you get it right, and Ana Cristina, Sleep Advisor, answers questions by phone.

The simple question: how long have you actually had the pillow you sleep on?

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