Silky-soft blend made with responsibly sourced botanical lyocell fibers offers light, airy, conforming comfort throughout the night. Lyocell fibers are naturally soft-to-the touch, gentle on skin and move moisture, giving our sheets and pillowcases added breathability and long-lasting comfort. Derived from responsibly managed forests because we care about the planet and you. ExactFit™ sheet design allows our sheets to stretch and move with our unique smart beds as they flex, and recover between uses, for a smooth, perfect fit. With our SmartFit™ design, sheets stay secure all night. A fully elasticized edge, elastic corner seams and anchor bands keep fitted sheets in place. Logic™ Labels on Sleep Number® bedding make it easy to see which way your bedding fits, right from the start. Simply align the labels at the bottom right corner for easy bed-making. Sheets are designed to fit any mattress up to 15" mattress thickness. Includes: 1 oversized flat sheet 2 fitted sheet 2 pillowcase