100% Long Staple Cotton (Flat Sheet), 98% Long Staple Cotton (Fitted Sheet) ENHANCED FIT: Designed for your Tempur-Pedic mattress, including a unique fitted sheet with four-way stretch to keep your sheets in place. STAYTIGHT BANDS: Help give your fitted sheet a snug, secure fit that stays put. ADDED STRETCH: Helps ensure your sheets maintain long-lasting comfort, quality, and durability. FIVE COLOR OPTIONS: Choose from White, Sandstone, Sleepy Blue, Silver Mist, and Cool Gray to match your bedroom décor. LONG STAPLE COTTON: A premium, super-soft fabric that provides additional strength.