As a long term poor sleeper (nothing to do with bc), the following suggestions:
* do anything when you wake up
in the middle of the night than think about yesterday or tomorrow! Engaging with work/things to do list/ etc in the wee hours or is the work of the devil. I do sudoku - occupies the mind to the exclusion of anything else.
* personally I’m not keen on the ‘get up until you feel sleepy’ advice. I’d be up all night.
* if hot milk/tea/chocolate helps, it’s worth having a thermos on stand by.
* worrying about not sleeping is a self fulfilling prophecy. Hard to avoid but do what you can.
* sleeping aids run out of puff - if, for example, valerian stops working, put it on the back burner and try again in a few weeks. Chopping and changing can help.
* physical tiredness can work wonders. Just need to turn the brain off too.