The Sleep Philosophy Gel Memory Foam mattress topper features a unique hole punch design to provide maximum airflow that along with the cooling gel-infused memory foam, provides the ultimate in sleeping comfort. Along with keeping you cooler, this topper helps to alleviate pressure points while the 2.5 lbs density temperature-sensitive foam adjusts to your body temperature. Memory foam is also resistant to dust mites and is naturally antimicrobial. This topper also comes with a zippered removable cover that features a unique fabrication that’s always cool to the touch. In addition, it has a mesh gusset to allow for even more airflow while you sleep. A non-skid backing locks the topper in place on your mattress. Another feature they know you’ll appreciate is that the topper comes in full mattress sizes to give your bed end-to-end coverage.