My CFS is quite sensitive to something that happens during sleep. I'm sure as I read more here I'll find more information about what others think is happening in my brain that causes this, but the way this affects my life is interesting. I find that I have (very) occasional really good days, when I wake up with energy and a clear head and the strength and stamina to move mountains. Yes, I wish I could figure out why this is, and then bottle it up for all the bad days! I absolutely hate going to bed at night on these days because I know that falling asleep is likely to be the kiss of death for all this good energy. Of course, when I do have these good days, I try to pack too much into them, which doesn't help. Does anyone else have this fear of sleep? Are there things others do that help the quality of their sleep?