The nonsense thoughts sound very familiar. It takes me forever to fall asleep, so I have plenty of time to observe it happening. I go from actively worrying about/solving stuff, to slight relaxation with my inner voice being a bit less active, to an even more "nonverbal thinking", then finally I'll have some thoughts that seem to make sense at first, but a few seconds later I realize were actually nonsense, which makes me happy as I know sleep almost surely follows from there within 5 minutes.
One thing I didn't see mentioned here is that sometimes it seems like some of the thoughts didn't originate from me, like someone else is present or said it. I assume when I'm deeper into sleep, the same process is responsible for creating all the other characters besides myself in my dreams.
One thing I didn't see mentioned here is that sometimes it seems like some of the thoughts didn't originate from me, like someone else is present or said it. I assume when I'm deeper into sleep, the same process is responsible for creating all the other characters besides myself in my dreams.