[drewg123]

I had similar issues, and tried to solve them with a similar method. I fell asleep to an audiobook about the roman empire many nights. I finally realized that the reason I was having trouble falling to sleep, and trouble getting back to sleep after a noise, etc.

I turns out that the only time when I was not doing something that occupied my mind was when I was trying to sleep. Eg, I'm either working, consuming media such as Netflix or podcasts, talking with people, etc. I'd even listen to podcasts while taking walks. So when trying to sleep, I'd be stressing out over my problems, and trying to work through them.

For me the solution was to find a better time to remove distractions and think about my problems. Eg, taking walks without podcasts, driving without the radio on.

[MetalGuru]

This resonates with me. I’ve noticed an absolute dependence on mental stimulation. I think your solutions is the same conclusion I came to. Cheers!

[hertzrat]

To be clear, you found your insomnia disappeared after having more no-input time?