This Lavio extra thick 4 inch memory foam mattress topper is designed for double beds, providing instant pressure relief and enhanced comfort without replacing your mattress. Featuring a dual-layer design with 2 inch cooling gel memory foam and 2 inch bamboo charcoal memory foam, it helps regulate temperature while offering balanced support. The non-slip base and adjustable elastic corner straps keep the topper securely in place, and the breathable knitted fabric cover is removable and machine washable for easy cleaning and everyday hygiene. - Lavio Mattress Topper Cooling Gel Memory Foam Double Non Slip Washable in White