【SUPERB COOLING PILLOWCASE】: Made of rayon derived from bamboo, high-density pillowcases are silky soft, keeping you cool and dry all night, giving you great comfort while sleeping. Keep you cool and dry all night, even in hot weather. 【HEALTH & HYPOALLERGENIC】OEKO-TEX Certified: Safe, hypoallergenic, and skin-friendly for a sweet sleep. This soft pillowcase set lessens tension on your hair and skin. Viscose from bamboo pillowcases effectively regulate your body temperature and avoid stuffiness, perfect for hot sleepers. 【ENVELOPE CLOSURE END DESIGN】: No-zipper envelope design prevents hair entanglement or the pillow from sliding out. Fits your comfy pillows precisely and prevents them from escaping the cooling pillowcase during your sweet dream. Simple and stylish. No damage to the pillowcase and easy to put in or take out the pillow. 【EASY TO CARE & MACHINE WASHABLE】: Machine wash in cold water. Turn the pillowcase inside out and place it inside a mesh laundry bag to wash and avoid pilling. Slight natural wrinkles may appear after washing, similar to cotton. Cool iron if needed to get it silky smooth like new. 【CUSTOMER SERVICE】: We recommend buying more than 2 sets so one can be used while the other is being cleaned. If you have any questions, please feel free to let us know, and we will be happy to assist you.