At Lucid Mattress, we make bedding for the whole family. The LUCID Twin XL Topper Cover provides a soft, quiet, and breathable layer of comfort and protection to any topper. Our zippered mattress topper cover is constructed out of an airy polyester blend and features a non-slip bottom to ensure your topper stays in place throughout the night. A great dorm essential, the zippered enclosure makes installation and removal easy. Just toss your cover in the washing machine to maintain a fresh sleep environment. This listing is for the topper COVER ONLY. A mattress topper will need to be purchased separately. Comfort awaits.