Who the hell keeps their house at 68F?! 74-78 is my preferred temp but I can cope all the way to 85. But you turn that below 70 and we're gonna have a problem (both in the "I'm fucking cold, bitch" sense as well as the "do you own the electrical company or something? I didn't know you're a billionaire")
I sleep at 60. House is 65 all day between November and April. We don't get true winter here so the heat hardly has to run. In May/June when we need to start running the AC, everything goes up 10-12 degrees.
I can't cope much over about 78. 80 degrees indoors and I've got no fewer than three fans aimed at myself. Gas bills in winter are relatively low. I'd like to get a little unit just for the bedroom and the computer room, then I don't have to cool the whole house to stay comfortable. Leave the house at 82 during the day and keep the rooms I'm in at 72.
I'm the kind of guy to wear shorts when it's below freezing outside.
I start to sweat if it's much above 21 (70 F) indoors, I prefer it to be around 18 (64.4F) to 19 (66F). Of course that is in winter where outside temps are well below freezing, in the summer I tend to sleep in the basement during the hottest period since I can't sleep if it's too hot
I keep my house at 55 during the week and 60 on weekends. 51 at night.
Edit: I sleep with a window open even when it's 10 degrees out and I have a window fan to pull that fresh air in. My wife tolerates it, but I get snuggled more because I run so hot, so it's a win.
This was pretty much how I operated when I was single, but my wife won't tolerate below 55 at night. I had a 600 ft² apartment, and my power bills were $150 in summer and $25 in winter. But now my wife and I have a 1,500 ft² house so that's just not feasible. In summer, I take a cold shower before bed, the thermostat gets left at 71, we put up a box fan on medium, and we sleep with no blanket. That makes things tolerable when the overnight lows are 80 degrees. It's also what kept the power bills below $250 this summer. We fucking roasted this year. 10 to 15 degrees above average all summer. 90-95 is very tolerable, even when it's humid. Just drink lots of water and you'll do alright. But 105-110? Count me the fuck out.
We keep our thermostat set to 64-65 during the winter time. Keeps the HVAC from running a lot. You just put on some cozy sweater, sweatpants and warm socks. During summer we keep the thermo higher, up to +10 more degrees.
I thought the same thing! Though since I pay the electric bill and have electric heat, I'm keeping my place whatever the fuck temperature it wants to be.