The more you check the clock to see how much time you have left, the more you can't sleep.
The more people come in to check up and ask you if you are asleep, the more you can't sleep.
Quite frankly, the best way to sleep during a bad insomnia attack is to just let go. Then tell yourself, " It really doesn't matter if I sleep or not. I'll just enjoy my bed. "
That has always worked for me. I have had insomnia since I was in highschool.
Speaking in metaphors,