Fix your mattress · Updated September 2026
How Often Should You Rotate a Mattress?
Every three to six months is the rhythm that works for almost every modern mattress — often enough that body impressions never get a permanent head start, rare enough that you will actually do it. Rotation is the single cheapest thing you can do to extend a mattress's life, and almost nobody does it.
Why rotation works
You sleep in roughly the same spot every night, so the same zone of foam carries the same load for years. Rotating the mattress 180 degrees moves the most-compressed zone to the foot of the bed and gives it time to recover while a fresher zone takes over.
Done from new, rotation keeps wear even across the whole surface and delays the deep body impressions that end mattresses early. Done late, it still moves an existing dip away from your hips — it just cannot undo the compression already there.
How often, by type
Manufacturer instructions vary, so check yours first — some brands specify a schedule in the warranty. As a general rhythm:
- Memory foam and hybrid: every 3–6 months. These materials take impressions most readily.
- Latex: every 6–12 months. Latex resists impressions better than other foams.
- Innerspring: every 6 months, or with the seasons so it is easy to remember.
- New mattresses: rotate at the one-month mark too, while break-in compression is fresh.
Rotate, don't flip
Almost every modern mattress is one-sided: comfort layers on top, support core on the bottom. Flipping a one-sided mattress puts the support core on top — rock hard, with the comfort layers crushed underneath. Do not do it.
Rotation — head end to foot end — is the correct move for one-sided designs. The exceptions are genuinely flippable two-sided mattresses, which say so explicitly, and a handful of dual-firmness models sold to be flipped.
Making it actually happen
The reason mattresses go unrotated is that it is a two-person, awkward job with no natural reminder. Tie it to something that already happens twice a year — the clock changes are the classic — and put it in the calendar.
While the mattress is off the base, use the moment: check the slats and centre support, vacuum the mattress surface, and look at the base for early sag. A five-minute inspection twice a year catches most support problems while they are still cheap.