I know simply stopping altogether sounds logical, but it's like any other addiction, some people find cold turkey easiest, some people find weaning off easiest. I've tried the former and it didn't work. I'm doing the latter and I'm doing well.
I cope with reading in bed a bit, but it's really, really difficult once I start reading to stop. I have to sort of rotate what I read to break the anankastic 'must finish' thing. What I'm using at the moment is mostly tree and bird identification books.
I'm now editing this, having thought about it overnight. I've realised that I've got to go back to seeing the early morning thinking as positive problem-solving, followed by a second period of sleep. That can then shift as it has in the past to getting up earlier and doing things in problem solving phase.
Also, I'm going to have another go at looking round a bookshop to see what sort of books would be worth a try. In the past, joke books and poetry books helped. I wonder whether 'how to do' books would be worth a try. Not complex ones, simple ones.
Sorry to have diverted the thread. It's amazing, though, how someone posts abotu one thing, the responses prompt thinking about other stuff, and before you know, someone (in this case me) has been helped.
Meanwhile, I walked past a school last night and saw signs saying they've got a summer fayre coming up. I think I shall go to it.