I tried it once using a meditation app I don’t remember the name of. It didn’t really do much for me other than temporarily relax me until I got back to work or whatever I was doing. But sometimes I do a basic meditation method when I have trouble falling asleep. The idea behind it is to try and clear your mind and think of nothing. Unfortunately I can’t empty my head completely.

What I do instead is trying to force everything out of my mind best I can and picture a balloon. Focusing on it alone, imagining it inflating when I breath in and deflate when I breath out. Doesn’t work every time but it’s given me the most success. Making me relaxed enough to allow myself to fall asleep easier.