How long does a Tempur-Pedic mattress like this last?

It earns the top durability mark, scoring a perfect 10. It pairs high-density dual-layer TEMPUR comfort foam with a dense support core, built to resist the softening and sag that ends most foam beds early, so the medium feel you buy is the medium feel you keep. The core does not wear out and has no springs to lose tension. On CertiPUR-US certified foams and backed by a 10-year warranty, it holds its shape for years.

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