Bedding is the slowest failure in the house and therefore the least noticed. Nobody wakes up one morning to a broken pillow. What happens instead is that support degrades over hundreds of nights, your body compensates, and you attribute the result to age, stress or your desk chair.

Pillows: two years and the fold test

A pillow does one mechanical job, holding your head in line with your spine. Fill compresses permanently over time, and once it does, the height is wrong for the whole night regardless of how you arrange it. Two years is the honest average for polyester fill.

The fold test takes five seconds. Fold the pillow in half, press briefly, and release. A pillow with life springs back. A pillow that stays folded has no resilience left, which is the same thing as no support. Down pillows also need the sniff test, because they hold moisture and allergens long before they lose loft.

Mattresses: eight years and the sag line

Eight years is the usual guidance for a quality mattress with two sleepers. It shortens with heavier load, with nightly use and no rotation, and with cheaper foam. It lengthens with a good base, regular rotation and a protector.

The physical test is easier than the calculation. Strip the bed, crouch so your eye is level with the surface, and look along it. Visible dips where you sleep, especially deeper than about two centimetres, mean the support core has failed. A topper will mask the feeling for a while and will not restore the support.

A pillow is a two year consumable that people treat as furniture, and a mattress is an eight year one that people treat as permanent.

What extends both

  • Rotate the mattress end to end every three months for the first two years, then twice a year.
  • Use a washable protector on both. Moisture is what ages fill and foam.
  • Wash pillows if the care label allows, and dry them completely. A damp pillow core never recovers.
  • Check the base. A sagging slat set destroys a good mattress from underneath.

Keeping track of a two year cycle

This is exactly the kind of interval a human brain cannot hold. Freshy tracks pillows at two years and mattresses at eight, logs the date you replaced each one, and reminds you with your chosen lead time so you can shop rather than panic buy. See the complete schedule for the rest of the bedroom.

Questions

How often should you replace a pillow?

About every two years for synthetic fill, three for latex or high density foam, or whenever it fails the fold test.

How long does a mattress last?

Roughly eight years, less under heavier load or without rotation. Sagging over about two centimetres means replace it now.

Will a new pillow help my neck?

Frequently, and it is much cheaper to try than a new mattress.