So they will be ok at room temperature for a day or two? We can use a space heater to boost the room temp to 75 or more. Not sure that my mother in law would like that, but I'll pay her entire March electricity bill if need be.

We have put them all in their own pillow cases. We wanted to keep them separate from each other to minimize stress. My husband is setting up the heater. We put the snakes in a walk in closet and we are aiming the heater towards the closet.