Yiyea 100% Viscose Derived From Bamboo Cooling Fitted Sheet With Pillow, White Package Includes: 1 king size fitted sheet (78" x 80") and 2 pillowcases (20" x 40"); Tips: NO Flat Sheet Deep Pocket: Fits mattresses up to 16 inches thick with an all-around elastic band and 2 holder straps for a snug fit 100% Viscose Derived from Bamboo Fabric: Crafted from viscose derived from bamboo with a 400TC construction; no synthetic polyester here. The special twill weave boosts durability and breathability while delivering a silky-smooth feel that keeps you comfy all night long Cooling and Breathable: The fabric is naturally thermo-regulating for cool, comfortable sleep throughout the year, making it ideal for hot sleepers with its moisture-wicking properties Machine Wash Care Instruction: Wash the new fitted sheet before use, as it may arrive wrinkled or with an odor. Use a gentle, bleach-free detergent in cold water on a delicate cycle, avoid prolonged soaking, and air dry or tumble dry on low heat, removing promptly to prevent wrinkles