Bucky Sleep Mask
Unlike cheap airline-provided sleep masks, Bucky masks are comfortable, and block all the light. You’ll be able to sleep on the plane, in the airport lounge, and when the dawn shines into your hotel room. Bucky’s masks (from $10 at Amazon) are designed so there’s room for your eyes to blink, instead of squishing them closed against the fabric. The velcro-adjustable head strap makes them comfortable for every head size. Bucky has several ultralight styles to choose from; most fold flat.