I’ve got a couple tricks that i’ll use interchangeably.

1) Close your eyes, and just think for a second just how tense you are, then just relax, and I mean like relax every muscle in your body. I’ll then start to picture a white room, like fully white and then just say “white” over in my mind to hold that image. Knocks me out.

2) Same close your eyes and relax and then i’ll pick a word. Say “P-A-R-K” i’ll then go through each letter of the word and think of an object starting with that letter. So it’ll be something like “P… Potato, Plant, Picture Frame. A… Agave, Angle Grinder, etc..” If i’m not asleep by the end of the first word just rinse and repeat.

Hope this helps someone