How long does a great Tempur-Pedic mattress last?
Most Tempur-Pedic mattresses last 8 to 10 years with proper use, sometimes longer because it's a dense, high-quality foam, it resists body impressions and sagging that lower-density, cheap foam mattresses develop within a few years.
Buy a Tempur-Pedic mattress, and you're going to sleep your best for 8 to 10 years. Sweet dreams!