I initially purchased one of these masks for myself because the early summer sun was waking me WAY too early! Every night, I put this sleep mask next to my bed so I can slip it on when my room gets to bright. They are very comfortable, very dark, easily adjustable and block light very well. The are raised around the eye socket with a little "pocket" where your actual eyes are. This design works great because it means there is no pressure on your actual eyeballs and eyelashes! The mask doesn't press or hold down your eyelids. I can't sleep without this mask and have recently purchases a second mask for my husband!