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Hi jno, lots of drugs help me sleep :) Don't worry the legal prescription kind! Otherwise the pain makes it really difficult.
It is a bit difficult at night though faffing about in a still drugged up haze to get something to drink when it wakes me up. Trying to be extra careful at the mo after I had a bad fall down the stairs yesterday morning though I think that was part my knee giving way as it's prone to do. Had a nasty fall on a bus the week before and some other incidents so need to minimise scope for injuring myself, especially when under the influence, so to speak.
I've got a humidifier and have it on every night all through the year (save it being absolutely freezing) and windows open too. It's got a compartment at the back I put the water/ice in and I set it on a timer so it goes off, hopefully once I'm already asleep.