When I can’t sleep I put on old radio. I highly recommend old radio comedies: http://www.bbc.co.uk/radio4extra/programmes/genres/comedy/player/episodes or the Jack Benny shows at https://archive.org/details/JackBenny1 (start around 1942)
It’s very rare for me to be awake at the end of the programme, even if I enjoy it. Somewhere in there, I’m asleep.