What's Your Biggest Peeve about Insomnia?

There are so many things to hate. Right now, I think my biggest complaint (OK, whine/whinge) is that the days seem to blend together without counterpoint. It's hard to keep track of what day it is when there is no definitive beginning or end. This is, of course, exaggerated by the fact that I don't have a 9-5 job. But still, there's my lament.

Do you have one?