Sleeping more soundly and longer
We have skylights in our bedroom, so having lots of light when I want to sleep is unavoidable and a major problem for me since I'm extremely sensitive to light (even the blue light of the DVD player from the next room is enough to annoy me).  I am sleeping so much better with this mask!  Not only do I not wake up with the sun in the morning, but I fall asleep better and sleep more soundly!  I had only thought it would help with the light - not entirely sure why it's helping me sleep more deeply.  I know some reviews didn't like the 'bumps' over the eyes and I was definitely nervous about that, but they haven't bothered me at all and I actually think that contributes to me sleeping more deeply.  It does slide to the side or off my head occasionally, but I prefer to keep the band loose.  Usually I just wake up long enough to fix it and surprisingly manage to go right back to sleep.
Rating: 5 stars