I used to take hours to fall asleep.
Some things that helped a lot:
1. Twilight on android and on my laptop
2. Thicker curtains.
3. "Meditating" in bed with my eyes closed.
My version of meditation is laying in bed with my eyes closed and actively trying to shut off all thoughts; at first it seems it's not working because I'm suddenly aware of everything around me and I feel more awake.
But after 5-10 minutes I no longer see the "noise" with my eyes closed but instead I start seeing images.
Once I start seeing images with my eyes closed I know I'll be asleep in a few minutes.
Hah, that sounds very much like something I used to do when I was younger. I would focus on one muscle at a time intentionally making each relax as much as possible. Start at the top of my head and work my way down to my toes. Once I was fully relaxed I would focus on clearing my mind, emptying it of thoughts. See nothing, hear nothing (except maybe my breathing/heart beat).
I haven't had to do that in years. I really don't have trouble falling asleep anymore (much to my wife's dismay).
My version of meditation is laying in bed with my eyes closed and actively trying to shut off all thoughts; at first it seems it's not working because I'm suddenly aware of everything around me and I feel more awake. But after 5-10 minutes I no longer see the "noise" with my eyes closed but instead I start seeing images. Once I start seeing images with my eyes closed I know I'll be asleep in a few minutes.