Learning to sleep

I'm still learning to sleep with the CPAP machine and mask, it hasn't been easy but I'm getting to the point of being able to keep it on nearly all night and I think I'm beginning to feel the benefit of it. Its quite hard to tell when an improvement is slow and steady until you look back over a period of time, two and a half weeks probably isn't long enough really.
I have at least managed to make more progress with this sock, not as quickly as I can, but steady and a big improvement on not knitting at all.