Sleep Philosophy Flexapedic Memory Foam Mattress Protector 3M Moisture Cooling Bed Cover Full White 100% Memory Foam Imported Set includes: 1 mattress Topper Cover: 250Gsm knit with3 moisture management Face, 100Gsm anti-slip reverse closure Inner: 90Gsm polyester jersey foam: 100percent memory foam Measurements: 54-by-75-inch mattress Topper with 3 inches thickness Cover: machine washable memory foam: spot clean with mild detergent