My travels, vacations and business take me to places near and far, and this incredibly comfortable mask has given me a good night of sleep when sleep was as rare as ice-cream shops in the Sahara. I have used these at hotels with poor shades (when I needed to sleep in) as well as tent-camping in places where the sun seems to rise in the middle of the night. Friends homes where street-lights are in abundence, plane flights, and catching that half-hour power nap on lunch-break at the office are also great places where this mask is like gold. These even saved the day for a birthday game of pin the tale on the donkey! They are highly adjustable, keep out all the light and can be worn a long-long-long time in perfect comfort. I own three (for myself and friends) - they are simply the best. Eagle Creek gets a LOT of my business with their high quality!