Campus Linens Gel Flex 34"X76" Memory Foam twin XL mattress topper for College Dorm Bedding Keep cool and comfortable in your new college bed The innovative design of the Gel Flex Memory Foam Topper increases support where you need it by moving the gel particles to areas of need And with special heat transfer technology, nights of waking up hot will be over Your body temperature will be moderated all night long for improved sleep without interruption The 34x76 topper is 1.5 thick, made from hypoallergenic, antimicrobial polyurethane foam and fiber