The revolutionary TEMPURâ pressure-relieving material in Tempur-Pedicâ's Classic Swedish Sleep Systemâ relieves painful pressure points, provides body-conforming support and absorbs sleep-disrupting motion. The AirFlow System™ base allows air to circulate freely through the mattress and provides additional support to the TEMPURâ components. The patented, one-sided, no flip design means you do not have to flip your mattress. The Classic features a removable, washable cover that is also naturally treated to be dust mite and allergen resistant.  20 Year Limited Warranty