How long does a mattress really last? Realistic lifespans by type

Most mattress sites quote a single number, usually "7 to 10 years". The real answer depends mostly on what the mattress is made of, and then on how well it's built and who sleeps on it.

Lifespan by mattress type

The sources we checked disagree on exact numbers, but they agree on the order: latex lasts longest, basic innerspring the shortest, and memory foam and hybrids sit in between.

Type	Typical lifespan	What wears out first
Natural latex	About 10 to 15 years, sometimes more	Very little; latex is resilient
Blended or synthetic latex	About 5 to 10 years	Comfort layers soften
Memory foam	About 7 to 10 years, more for dense foam	Top foam layers soften and keep body impressions
Hybrid	About 7 to 10 years	Comfort foam first, then coils lose tension
Innerspring	About 5 to 8 years	Coils and thin padding

Two caveats matter more than the table. First, cheap versions of every type wear out sooner: one source notes that a poor-quality innerspring can lose coil support in as little as three years. Second, heavier sleepers and couples put more load on a mattress, so expect the shorter end of each range.

Why foam density matters so much

For foam mattresses, the single best predictor of durability is foam density, measured in pounds per cubic foot. The Polyurethane Foam Association notes that higher-density foam loses less height over time, and that conventional foam of about 2.0 pounds per cubic foot or more performs best. It also notes that most softening happens early in a mattress's life.

Brands rarely print density on the product page. If you can't find it, ask the brand before buying. A brand that won't say is telling you something.

Signs your mattress is done

• You can see a dip. Lay a straight edge, such as a broom handle, across the mattress and measure the gap at the lowest point. A dip of more than about an inch usually means the support is going.
• You roll toward the middle or the edge. That's sagging, even if you can't see it yet.
• You wake up stiff or sore and feel better after a night somewhere else.
• You feel coils through the top layers of a hybrid or innerspring.
• It's noisy. Squeaks and creaks come from worn springs.

A dip that's deep enough may be covered by your warranty. See what lifetime warranties actually cover before you pay for a replacement.

How to make a mattress last longer

• Use the right foundation. Warranties usually require solid or closely spaced slats. Gaps let foam sink between the slats.
• Rotate it head to foot every few months in the first year, then twice a year. Most modern mattresses aren't meant to be flipped.
• Use a waterproof protector from day one. A single stain can void most warranties.
• Don't sit on the same edge every day. Edges wear fastest.

What this means when you shop

A cheaper mattress that lasts 5 years can cost more per year than a pricier one that lasts 12. Compare the price per year of expected life, not just the sticker price. Our price tracker shows what each model really sells for, so you can compare durable options like natural latex without overpaying.