I see posts here often where people are worried because their incubator went up or down a degree or they turned their eggs only twice one day instead of three times.......Well here's what just happened here that illustrates how resilient the process is. We had a power outage which lasted almost 30 hours. My incubators are in the basement where the temperature stays consistantly right around 55 drgrees. I moved all the eggs [about 250] into one incubator so there's be more thermal mass to hold heat. In spite of this by the time the power came back on the temp in the incubator was 55 degrees and it had been there for some time. The power came on. I put the eggs back where they were and today, right on schedule, the eggs are hatching. The point being-relax a little-minor variations probably aren't going to hurt anything.