Review (3/5): Be sure to wash before wearing! Doesn't interfere with REM sleep!
Edit: Accidentally went through the washing machine ONCE (got caught up in the sheets when my husband washed them) and the fabric came off the front and back. Also it lost it's shape mostly and it's stiffness completely. Ended up buying a different mask to replace this one. It's the Earth Theraputics Form fitting eyemask. You can find it on Ulta or other places- I like it MUCH better!
Love this thing! Just be sure to wash it first- I didn't have any dye come off on my skin, BUT the dye ended up getting in one of my eyes and had it CRAZY itchy for a few days! (No amount of eye wash or eye drops helped.) Hand washed it and let it soak a bit before rinsing, and I didn't have that issue again.
I have crazy sleep issues - two sleep disorders, one which makes me a chronic night owl. Which means that during the day I need a great mask to keep the sunlight out. Also narcolepsy, which already messes with my REM sleep, so having a mask with the indents like this that doesn't compress on the eyes and lets the eyes have free movement is important. Masks that compress your eyes can interfere with your REM sleep- not good! This mask is also soft, and blocks out almost all light. The only amount that comes in for me is where the nose cut-out is, probably because I have a tiny nose. It's not noticeable once I fall asleep. The velcro lets me adjust it snug enough as well, even though my head is small. I haven't put it through the machine for washing, I think I"ll stick with hand washing becuase I'm not sure how well the material would be going through machine wash.