Fiber content: 100% viscose (rayon) derived from bamboo. Cooling comfort: smooth, breathable feel designed for warm sleepers. Deep pocket fit: fitted sheet fits mattresses up to 22" for a secure fit. What’s included: 4-piece set (1 flat sheet, 1 fitted sheet, 2 pillowcases). Easy care: machine wash cold; tumble dry low; remove promptly. Sleep cooler with Oasis Cooling Sheets. Made from 100% viscose (rayon) derived from bamboo, this sheet set has a silky-soft feel and breathable comfort that’s ideal for warm sleepers. The fitted sheet features a deep pocket design to fit mattresses up to 22", and the set includes everything you need for a clean, elevated bed setup. Fiber content: 100% viscose (rayon) derived from bamboo. Made in China.