TIPS: It takes 48 hours for foam to return to its original state. If the foam does not recover, please remove the cover. You can use a hair dryer to blow on the foam, it will change back in a few minutes. Ultra soft & Luxury Comfort The memory foam sleeping pad adopts a double-layer design, including gel memory foam and 30D high-density foam. High density foam can effectively support the weight as the bottom, and gel memory foam can automatically adapt to the shape of the body, bringing a soft and comfortable feeling. Waterproof Cover The super soft velvet fabric is detachable and washable.