Lying in bed I’ve now pretty much developed 6 positions:
I start each stint off with a cushion under my hunchback, shoulders and head back.
recovery position to one side,
plus upper leg backwards, sometimes arched like in six.
and 
other side.
Stretching/arching legs/back/head backwards to various degrees, but at a large angle only <5’, otherwise it hurts my knees, good for lower back unrest tho.
Often have to get hair out of face and scratch my face and lower back and front too, and cold showering to get to sleep quicker has become normal. Sitting good on other high chairs. Slouching and floor sitting spreads the pressure. Bladder 0-1.
Quoted from this entry (2021-08-08) on my blog.