From the maker: "Enjoy a sound sleep while experiencing the comforting feel of complete darkness by wearing the Total Eclipse Sleep Mask. The amazing 100% light block ability of this sleep mask is coupled with deep eye cavities to relax your eyes and eliminate pressure. For optimum user comfort, soft foam is used on the sides along with an adjustable elastic strap so that it contours your face and provides a firm fitting with a Velcro fastener. Perfect for upright sleeping or medical uses requiring no light."
