In addition to offering waterproof, moisture-wicking protection, with Surface-Guard Technology for your TEMPUR-PEDIC, our TEMPUR-Protect breeze° mattress protector is made with breathable TENCEL Lyocell fibers that will not interfere with the all-night cooling of your Tempur-breeze° mattress. With built-in 4-way stretch and StayTight corner bands for a snug, secure fit. The protector will stay, smooth and cool, all night long.