Property me this mask, etc. bought because I have a month for several days at least once night shift, my room is oriented to the south and it makes my window constellation very difficult and expensive, there Blinds to install After the two straps were a bit adjusted, seated the mask so that it does not slip while sleeping and yet loose enough that it does not press uncomfortable. The only small flaws: Despite Schauf Stoffrollen at the bottom of the screen, a little light at the nostrils comes through what is now not so overly bother me, because it really is minimal. Thus, the light remains as low as possible, I have the lower tether stretched slightly stiffer, so now but the lower edge of the mask presses a little on the nose. Bothers me (for now) but also not really necessary, you can or similar one piece handkerchief there also Insert the padding. Nevertheless, I have to deduct one point for unfortunately. However, this situation should not be deterred from buying here, because we know that everyone has to take yes at themselves;)! Try it out as it sits. I for one find them comfortable to wear and would recommend them to anyone who does not want to be gerießen through the beautiful but harsh sunlight from his daydreams.