When I was young, I fell asleep in bed with headphones on and I had quite a lot of music. That's why I had headphones, because I couldn't listen so loud at night. I think it helps because one listens and does not think about the worries of life. For me, the best placeholder is a television or sometimes a computer. I once heard that in the case of television, it is a form of hypnosis in which the viewer peeks into one place.