How Often Should You Replace Your Pillows?

You probably remember roughly when you bought your mattress. Pillows are harder to place. They get a little flatter every year without anyone noticing, until one morning you’re folding one in half under your head and wondering why your neck aches.

Our 2026 UK Sleep Survey found that nearly one in five of us have been sleeping on the same pillows for six years or more. So how long should a pillow really last?

We recommend replacing your pillows at least every two years because the filling compresses and loses its springiness over time. Once that happens, they stop supporting your neck properly.

There’s no official standard for how long a pillow lasts, so treat two years as a nudge to check rather than a deadline. Some pillows sail well past it in good shape. Others are ready for retirement before their second birthday, especially if they’ve had heavy use or a hot summer’s worth of sweat build-up.

What your pillow is doing tonight matters more than the date on the receipt.

Our pillow buying guide will help you find one that suits you.

Every filling gives up in its own way, so it helps to know what yours is likely to do:

Side sleepers often find that pillows wear out faster, since the weight of their head presses down on a smaller area of the filling. Our pillow buying guide has more on how each filling behaves.

A pillow can look perfectly respectable on the bed and still be letting you down every night. These are the things to look out for:

• Morning stiffness: Waking up with an achy neck or shoulders that ease off as the day goes on is one of the clearest signs your pillow has stopped supporting you.
• Constant rearranging: Folding your pillow in half, punching it into shape or piling a second one on top means you’re making up for height that isn’t there any more.
• Lumps and dips: Filling that’s clumped together or has left a permanent hollow that won’t even out again, however much you fluff it.
• Yellow patches: Those stains are sweat and skin oils that have worked into the filling. A wash can lift some of it, and deep yellowing means the pillow has done its time.
• A lingering smell: If your pillow still smells musty after a wash and a proper dry, it’s ready to go.

One or two of those signs might just mean your pillow is due a wash. Several at once, and you’re better off starting fresh.

The fold test takes about five seconds. Fold your pillow in half, hold it there for a moment, then let go.

A pillow in good shape will spring back on its own. One that stays folded or flops open slowly like it can’t quite be bothered has lost the resilience that keeps your head at the right height all night.

The test won’t tell you everything, so use it alongside how your neck feels in the morning, which is still the best guide you’ve got.

A flat pillow isn’t only a comfort problem. It changes the height at which your head sits, and that height is what matters most for your neck.

A 2021 review of pillow research found that a height of roughly 7 to 11 cm worked best for comfort and neck pain. A 2023 study found that people’s neck pain improved once their pillow height was carefully adjusted to suit them. A pillow that’s lost a few centimetres of loft quietly moves you out of that range.

Plenty of people are sleeping on a pillow that isn’t working for them. In a field trial of 106 people, more than half reported regular waking symptoms, an uncomfortable pillow or poor sleep on the pillow they normally used. Only 42.5% woke up with no symptoms at all.

The NHS also lists getting your neck locked in an awkward position while you sleep among the most common causes of neck pain. In our survey, almost a fifth of people who sleep badly blamed pain in their neck, hips or lower back.

If your neck is the thing waking you up, our guide to the best pillows for neck pain will help you pick a replacement that suits how you sleep.

A few small habits can add months to the life of a pillow:

• Use a protector: By keeping moisture and stains out of the filling, a protector adds 6 to 12 months to a pillow’s life, according to our pillow buying guide. Browse pillow protectors and covers.
• Wash it now and then: Monthly is the aim for pillows, with protectors going in weekly alongside your sheets. Our guide to washing your pillows covers which ones can go in the machine.
• Dry it thoroughly: Damp filling is what leads to musty smells and clumping, so give a washed pillow plenty of time to dry all the way through.
• Give it a shake: A quick fluff when you make the bed helps the filling stay even. Our three ways to fluff a pillow include some techniques.
• Rotate your pairs: Swapping your two pillows around every so often spreads the wear, since we all tend to favour the same one night after night.

Old pillows don’t need to go straight in the bin, where they’ll sit in landfill for years. Our pillow buying guide suggests a few better options.

Textile recycling banks at supermarkets may take old pillows, and many councils collect bedding for recycling, so it’s worth checking yours. Clean, usable pillows are often welcomed by charity shops and homeless shelters.

Pillows that have seen better days can also be put to work around the house, as extra padding on the sofa, as the base of a pet bed, or stuffed inside handbags to help them keep their shape in the wardrobe.