I left mine at 65, but do not turn off the heat, especially during the winter. You don't want to not be home and have something bad happen because the heat was off.

Also ideally don't post when you'll be out of town on the internet. Just say "I'm traveling for a week in the winter" keep it vague.

I also went and got smart outlet plugs so I could operate some of the lights while I was away from home.