Comfortable: the stretchable side strap and soft chin cup are gentle on the skin and keep your mouth comfortably closed during therapy. 
Versatile: fits easily under or over most CPAP mask headgear and can be used with a wide range of mask and pillow systems. 
Simple: the single-strap design fastens at the top of your head and has velcro fittings that are easy to adjust. 
Washable: the chin restraint is made of neoprene and can easily be washed in warm water.