Sods' law says...

I managed to segue straight from ten days of "It's too hot, I can't sleep", to "I've got a head cold*, I can't breathe to sleep". The night they overlapped was really fun - finally managed to get to sleep some time after 10AM.

Normal service will be resumed as soon as my IQ is slightly less sleep-deprived.

* Started in the sinuses, so relatively sure it's nothing more plague-y.