"Heatwave", by The Jam.
It turns out that this year's annual visit to Melbourne and Geelong has fallen during a week that seems intent on breaking all kinds of temperature records. Where we stay in Geelong has air conditioning downstairs, which of course is a blessing (and a luxury we wouldn't have had if we were at home, where 40 degrees seems to be the baseline maximum temperature at the moment), but there is nothing upstairs except a few small windows (and no insulation either) and upstairs is where we are sleeping, or, rather, trying to. If I said it was like lying in a furnace you would think I was exaggerating. You would be wrong.
There are countless versions of this Holland-Dozier-Holland song out there. This one will always be the one for me.