Three nights of interrupted sleep always between 2.00 and 4.00 am mostly. Damn it and once awake I can’t back to sleep at all easily I’ve tried reading and listening to radio
Even tried to alter my breathing and counting to 5 while wiggling my toes this sometimes works not tonight through.
I've been meditating regularly for a few years now, and one of the (many) things it has helped me with is dealing with those annoying times when I wake up in the middle of the night and don't feel like going back to sleep will be possible
at all. I start meditating (focusing on my breath passing through my nose). One of the phases of the meditating mind is basically exactly the same as the one when you're going to sleep -- you're awake but dreamlike images keep popping up in your mind's eye. So instead of maintaining meditative focus when my thoughts begin to stray, I allow myself to drift off. It's been incredibly effective so far (but of course, I doubt I had been able to do it without a fair bit of experience with meditation).
And while I'm ringing the meditation bell, I might as well add that regular meditation has been such a huge help for me in the long term that it's easily the single biggest contributor to my much more stable state of mind and body today. It's helped me with my anxiety in depression, with my focus, with my inability to get started with tasks, with my procrastination, with keeping up an exercise habit, building habits in general, and more. I do 20+ minutes on a normal day, but when I started out I did only a few minutes -- always start small.
There are lots of types of meditation, but today I use vipassana. If like me you're not into the mysticism, I can recommend the book
Mindfulness in Plain English, which is 99% secular and down-to-earth. It describes the techniques you can use and little else (except for telling you to be nice to everyone, which I'm okay with

).