From IMDB: The Cure for Insomnia
This is the longest movie ever made at a total running time of 85 hours. It premiered in its entirety at The School Of The Art Institute in Chicago, Illinois from 31 January to 3 February 1987 in one continuous showing.
When I couldn't sleep, I get out of bed and play SEIV (or another game) for an hour or so until I get sleepy. Might as well have fun if I couldn't sleep. If I still can't sleep, then just keep playing more turns..