I leave for work at 5:30 am, and don't get home much before 6pm. Last winter I had a lot of frozen eggs when it got very cold. So, I was wondering if this would work. I have rear roll out nests, could I put a heating pad in the roll out part, set on low, and cover the egg holding area with cardboard to hold the heat in by the eggs. Would this work, or would it spoil the eggs? Most of my girls are late morning to early afternoon layers, so the eggs would be on the heating pad for between 5-8 hours.