One year we went to Vegas at Thanksgiving. It was 68 degrees there. The cab that picked us up had the heat in his car blasting to 85. It was unbearable coming from a cold climate.
My daughter and I swam every day, the only ones in the pool, with the locals in disbelief.
It got me to thinking. Humans must has some level of acclimating to different temps so I started an experiment this year.
I keep the thermostat at 58 degrees. Sleep is amazing with a heating blanket on low. Otherwise long sleeves do the trick and a blanket when relaxing watching tv.
Currently relaxing in bed with the window open and temp outside at 48 degrees. Am comfortable.