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

Durability is a top strength, scoring a perfect 10 out of 10. The firm tuning actually helps: there is less comfort foam to soften, sitting on a high-density support core that does not break down, all in the proprietary TEMPUR material the brand has refined since 1992. That density resists the slow sag that ends most foam beds early. Backed by a 10-year warranty, it is built to stay as firm in year five as when new.

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