- GENUINE ORGANICALLY GROWN BAMBOO VISCOSE: Our luxury bed sheets are made from 100% organically grown viscose derived from bamboo fibers. They are OEKO-TEX Standard 100 Certified, ensuring they are free from over 100 harmful substances, making them safe for your family. No blends with other fibers or fabrics. - 2-PIECE KING PILLOWCASE SET: This set includes two king-size pillowcases (20"x40") designed to accommodate even the largest king-size pillows. Experience a sensuous, silky feel that becomes softer with each wash. Note: pillows are not included. - ENVELOPE-STYLE CLOSURE AND DOUBLE STITCHING: Each pillowcase features a durable double-stitched outer seam for long-lasting use and an envelope-style overlapping closure. This design keeps your pillows securely inside while providing a cooling sensation for a restful night's sleep. - ULTIMATE COOLING SOFTNESS AND BREATHABLE COMFORT: The thermo-regulating fabric maintains a comfortable temperature while you sleep. With moisture-wicking properties, these pillowcases offer year-round coziness, making them ideal for individuals with sensitive skin. Use Scenarios: 1. Perfect for a luxurious sleep experience in your master bedroom, enhancing your bedding ensemble. 2. Ideal for guest rooms, providing an inviting and comfortable stay for visitors. 3. Great for those who experience night sweats, as the cooling properties help regulate temperature. Upgrade your sleep with our premium bamboo viscose pillowcases, designed for comfort, safety, and durability.