65% Cotton, 35% Tencel Lyocell MOISTURE-WICKING: Moisture-wicking materials keep you comfortable and cool while you sleep. SOFT FEEL: Natural TENCEL Lyocell fibers provide long-lasting comfort and a soft feel. STAYTIGHT BANDS: Help give your fitted sheet a snug, secure fit that stays put. FOUR COLOR OPTIONS: Choose from White, Sleepy Blue, Cool Gray, or Blue Azure. ENHANCED FIT: Designed to perfectly fit your Tempur-Pedic mattress.