Bamboo Mattress Topper: Our mattress topper is crafted from Bamboo Viscose,the hotel quality mattress topper will transform your mattress from ordinary to unparalleled comfort and supreme softness - while maintaining outstanding support and cushioning, ensuring a comfortable night's sleep. Cooling & Breathable: The Bamboo Viscose fabric is highly breathable and moisture-wicking. It helps regulate body temperature, keeping you cool in summer and warm in winter, and prevents you from feeling hot and sweaty. Deep Pocket Perfect Fit: 8"-21" elastic deep pocket design perfect fits mattresses. The 78"x80" king size ensures a snug fit, and the elastic band keeps the topper securely in place, no matter how much you toss and turn. Easy Care: Machine washable, this mattress topper is easy to clean and maintain.