This nasal dilator is apparently very effective, at least my wife had a quiet night. For me, this was not quite as pleasant. I have obviously a nose that is different than the default. The temple, which lies on the outside of the nose proves to be too stale, so I had after the first night a rather unpleasant stimulus. Inside there was only a small problem, since only a portion was complete in the nose, one side only about 90%. So I need more yet more size, but there are apparently not L. A pity, I'll keep trying times. I have not really been dared to stretch the bow, maybe I'll try it on occasion times. Until then, I give 3 stars because apparently an effect has been conceded. Until then, I'm going to try alternative.