What temperature do you keep your thermostat at?

We do somewhere between 72 and 76. But at night in the peak of summer we'll bump it down to 70. Our bedroom is on the top floor and can often be several degrees hotter than the lower floor where the thermostat is, so for a few weeks in the summer we have to really crank it.

I'm told we should look into a vent fan to help distribute the air better but I haven't taken the time to put in the effort yet, I'm sad to say