Any suggestions on how to beat insomnia?

It’s almost 2 a.m. and I have to be up at 6 tomorrow.
I normally don’t mind not being able to sleep my earliest class is 11:30 but tonight I have to.

Turning off my laptop and just laying in the dark makes my mind go a million miles an hour, so I always stay up even later just thinking.

Music makes me see patterns, and that can keep me awake for days.. I’ve tried.

So I guess what I’m asking is if anyone has any alternative methods to falling asleep. I searched for this question, and similar ones, but didn’t see any. Sorry if it’s been asked..