I get the impression that everybody is tired at the moment, I think its to do with the end of summer.
I can dance all night, and get 2 hours sleep and get to work with a cheery grin, no problem, all summer, but come this time of year, till it warms up, I need a good 10 really!
Maybe I'm like a tortoise, I need to be put into a nice warm dry box of hay to hidebernate for the winter, with a big sign on it saying:
"Do not disturb until it warms up again, (apart from for Chistmas, New Year, my birthday, Rocktober, Camber, a weeks skiing in January, and 10 days in Cuba in March)"