Responsive gel memory foam delivers lasting cooling and pressure-relief for less tossing, less turning, and more deep sleep. It’s open-cell design enhances airflow and gently aligns, so you wake up fully refreshed. The stay-dry instant moisture wicking cover is removable and machine washable, for convenient cleaning. Plus, the cover acts like a fitted sheet, stretching to fit mattresses up to 17” deep and holding your topper in place. Easily get the cool, supportive sleep of your dreams.