I have corn snakes partially because it doesn't matter if the power goes out compared to many species from more tropical or arid places (like ball pythons). :lol: Unless they just ate and need to digest they still retain the ability to brumate the same as the more northern species on the continent. They can sit at 50s F for months. Generally you'd want a couple weeks prep time to empty the digestive tract because metabolism will cease eventually in the cold but most also still have an emergency response to regurgitate if they experience a cold snap so if kept hydrated and adjusted back to proper temps and feeding they are still fine. If my corns, bulls, and pines get cold enough to die when starting out healthy we are all probably suffering too much and have started a back up heat source. The house has 2 bird species and 5 other mammals besides humans who also care it got below usual room temp. Except the sled dog breeds who would live in subzero year round. Really I worry more about power outages in the heat. I have over a dozen chinchillas that start to risk heat stroke in the high 70s. Even rabbits run more risks in the heat and you can lose pregnant does breeding before a heat wave. Half my chest freezer is frozen containers of water to chill everyone.