This mask is absolutely fantastic for blocking out light.  It's so comfortable, too!  Unfortunately, the dye has been bleeding onto my pillowcases for the past six months.  It's been extremely difficult to get the stains off.  I was so embarrassed when I used this mask in a hotel bed and left the white pillowcase practically black!  Since I'll be buying white sheets for my bed in a few months, I will definitely be buying a different mask to replace this one.

If you have black sheets, by all means buy this mask since it won't matter how much the dye comes off.  Otherwise, steer clear.