Transform your old mattress into something new and lavish by adding a plush and supportive memory foam layer to sink into. Featuring a cooling half-inch top layer of gel-infused memory foam that sits atop a 1.5-inch layer of ventilated foam to provide all over pressure-relieving support. You’ll experience a cooler, more relaxed, serene sleep. This topper features our built-in ventilated iCOOL Technology System that enhances air flow and ensures optimal breathability in the foam, fabric and fabrication process. A luxuriously smooth, soft, hypoallergenic cover surrounds your topper and features a non-skid bottom ensuring it stays in place atop your mattress night after night.