Hi! My Nivea Advent Calendar included a nice sleeping mask. During the holiday, I slept in a tent at the campsite, so that seemed perfect for me to try out. The mask fits the eyes and should also reduce friction, so you can get up with a fresher look. So less fluid accumulation under your eyes. If that's true, I dare not say. I'm actually still suffering from puffiness. In addition, the mask retains light well. The only downside... it's not so much in the ears, but I think it's ideal for the holiday. X