Hi - my top sleeping-better tips are:
an eye mask to keep out the early morning light (essential nightwear!!)
satin nighties/nightshirts OR satin sheets to help turning over (not both together, tooooo slidey) - google "Betweenthesheets" which looks as if it has a brilliant selection
a firm mattress with a square edge (not a roll-off round edge) helps turning and it is more obvious where the edge is
for nocturnal bathroom visits make sure all doors are left wide open (otherwise I get stuck opening them) and fit child nightlights into electric sockets enroute so don't have to put main lights on - they last for years and years and hardly use any power
if can't get back to sleep listen to a FREE relaxation app on a phone or ipad - use headphones if necessary so don't wake OH - leave it all set up ready at bedtime and easy to get at. Lots of choice of spoken words or soothing music.