I've got a couple of longer, more analytical topics to write about (and time to write them this weekend), but I've been particularly tired and cranky lately.
For the last four or five days, no matter what time I get to sleep, I found myself inexplicably awake at 7am, whereupon I try and fail to return to sleep, and only approach restfulness right as I need to get out of bed.
It took me a couple of days to realize that it was the same time each morning, and now I suspect that someone (i.e. a neighbour or delivery person outside) or something (i.e. a computer or fridge or something) makes a noise at 7am which I don't remember hearing because I was trying to get some bloody sleep!
While my sleeping hour varies, I usually aim to get the same number of hours, ending between 8:30 and 9:30am. If I don't get enough sleep, I'm a bitch to be around most of the day unless I spend a lot of energy to act otherwise. This unexplained noise (which was back again today--Saturday) has certainly put the "circa" back in "circadian rhythm".