The pillow needs a cover to keep it fresh and clean always for ready usability. Moreover, the pillow is uniquely shaped and a normal pillow cover can’t be worn around it. The Contour CPAPMax pillow case is specially designed to fit the contours of the CPAPMax. The pillow case is made from 100% cotton fabric and a premium 300 count, making it safe and secure to use. The pillow cover opens on the upper end of the pillow to allow you to access to the inner CPAP hose tether. The fabric of the pillow is breathable material which helps improve the cool properties of your pillow.