No I do not keep it warm. I keep it steady. Steady is the key if you keep it steady then your incubator doesn't have to work hard.Do you keep your room extra warm for this? I've thought about that kind of thing before...if it's a small room it wouldn't be too hard to keep a space heater going to up the ambient temperature high enough to avoid drastic dips when opening the incubator. I have mine in a small basement room; since it's in a basement there isn't much temperature change through out the day and the surrounding humidity is higher as well.