We had snow today with a high of 38. It is 28 right now (8:30pm) This is way to early for this. My TT is in bed for the winter but my old pop-up is ready for deer season. I use the heat to warm it up when going to bed and turn it on for 10 minutes before I get dressed in the morning. I sleep in a heavy sleeping bag with a fleece liner at night so I don't worry about cold. Opening day of deer season last year was 5 degrees at 5:00 am.
The reason I use the pop-up instead of the TT for deer hunting is because the wife says I will. I am right as long as I agree with her.