Specification: Cover Material: polyester fiber Filling Material: 72D hollow fiber Color: White, Gray，Pink， Coffee，Triangles Dimensions : Size Length Width Height Twin 74.8"/190cm 39"/99cm 3.9"/10cm Full 74.8"/190cm 54"/137cm 3.9"/10cm Queen 80"/203cm 60"/152cm 3.9"/10cm King 80"/203cm 78"/198cm 3.9"/10cm TIPS: It's Packaged in a Vacuum Bag, Please spread It for a Few Days Before Use So It Would Return to Normal Thickness. (best Way Fluffy Again: Lay It in the Sun for a Few Hours.) Package included : 1 X Mattress Pad 【EXTRA THICK & LUXURY COMFORT】：Drift into a sounder, deeper sleep on this overfilled pillow top mattress topper. Filled with supportive 72D hollow fiber alternative fill, it distributes weight evenly and alleviate pressure points, allows you sleep soundly and wake up without back pain. Ideal for side, back or stomach sleepers. 【Ergonomic Design】: Unique ergonomic design, scientifically improve human sleep, the thickness of the mattress is 10cm to reach the human body comfort value, the force is uniform, and the support is good. You will not feel rigid during sleep, ensuring your sleep quality. 【COOL & BREATHABLE】: The mattress cover is made from polyester fiber combed top surface features good ventilation and distributes heat to help regulate temperature. It will wick away sweat and keep you cool and dry. Reduce hot feeling caused by memory foam mattress or foam mattress topper. 【Perfectly Fits Mattress】：4 power band elastic ensures a secure fit and grip on the mattresses.The elastic fabric band will fit up perfectly to our mattress. 【Machine Washable & Easy Care】: Be it sweat or stains, you will never get them out of memory foam topper or expensive mattress. This mattress topper will take care of them all. If it gets dirty, just throw it into a commercial washing machine, it will come out fluffy and clean after washing and drying.