I have struggled with this 'just as I start to drift off to sleep jerking' problem for years. It is one of the reasons I take gabapentin and why I had to up my dose to 900 mgs. I am up at 1:30 am because I was starting to jerk and twitch.

I find that my only solution is to get up and change environments for a while then start to going to bed process all over again.

I have never found any consistent solution.

I understand your frustration.