What was it last night?

For some godforsaken reason I couldn't get to sleep last night. I've had about four hours right now AND it's hot in the house, only getting hotter. I'm feeling stupid and very cranky. I guess that's better than how I'd feel if I were a goldfish, though: three more of them belly-upped today. I think it was the heat. I've brought them into the basement to try to reduce further attrition.