Sam2 -“Health: If it’s obvious you don’t have to try. Just like I wouldn’t go into my room if it was 40 degrees (F), I don’t even have to go into the Sukkah.”
Sorry to disagree with you Rabbi, but there is a Chiyuv of Kein Todoroo. So 40 degrees can be changed with a heater or using a sleeping bag. (Sleeping bags -Some actually go to 20 degrees.)
Cold isn’t a P’tur, unless you are a Mefunak!