I didn’t realize all of this time how much ambient light in my bedroom was impacting my sleep. Also the air movement from the fan drying out my eyes. I’ve done my best to cover all light sources but it doesn’t matter even light outside the window must have been impacting my sleep. Because now that I’ve worn this mask, I’ve had the best nights of sleep I have had in probably over 15 years! I didn’t even know I was missing it until I wore it and slept like a baby! Get this mask, you won’t regret it. Wonderful and perfectly light blocking, sleep enabling comfort. My eyes are now bright and shiny in the morning, instead of red, sleep deprived, puffy and sleepy.