About this item ? Size & Deep Pocket - Twin XL mattress pad measures 39*80 inches. The elastic skirt stretches to fit mattress up to 21" deep for universal use. With a deep pocket design, the mattress will stay neat no matter how you move. ? Fluffy and Noiseless - 400 GSM Down Alternative Fill. The thickness has been increased to the most comfortable level with an unparalleled experience.Padded cotton protects you from noise and allows you to sleep well all night. ? Naturally& Breathable - We use up to 40% bamboo as the twin XL mattress pad surface. Quite a little micropores inside the bamboo fiber, which is a natural "breathing fiber". Compared with other fabrics, its heat dissipation is more efficient, which helps sleepers stay comfortable at all times. ? Care Instructions - Using durable, high-quality materials. This mattress cover is made of fine underlay material, so no matter how many times you wash it, no matter how you turn it over, it won't tear. Washing machine friendly.Tip: Do not bleach, dry at low temperature. ? Customer Service - Please leave Bamboo fiber mattress cover for a while to fluff up before using it. We provide100% satisfaction after sale service and will make every effort to resolve problems. If there is anything wrong with your order, just feel free to contact us.