As a child, we had a heater in the living room, but it got to the 40’s sometimes in the rest of the house. When we got ready for school, we would get in front of the heater to dress and put our clothes on the heater for 30 seconds or so before we put them on. We had no air conditioner till the 60’s, so we slept with the windows open and fans blowing. I was tougher then. I still sleep with the thermostat at 69 now. At 70-71 degrees, I kick the covers off and figure why spend the money for a couple of degrees. I would go to about 66, but my wife would get the rest of my money in the divorce.