ULTRA SOFT: Niagara Queen Mattress Topper is made from viscose made from bamboo fiber and fits mattresses 8-20 inches deep. The mattress topper queen is 60x80 inches in size, gentle on sensitive skin, and ultra-soft. CLOUD-LIKE SLEEP: This queen mattress topper adds an extra cushion to potentially ease back pain. The back support mattress topper queen is also cool and sweat-absorbent for extra comfort. EASY TO USE: The cooling bed pad has a deep pocket, is easy to put on, and has extra-length stretchy sides for thick mattresses. The puffy mattress topper is machine-washable and is packed in a compressed package.