The same thing happened to me lastnight around 1:30 in the morning. I had just got in bed, I have their brooder in the corner of my bedroom and I noticed they were raising Kane about something so I looked over and the light was out. Thankfully I caught it before they got too cold.The last two just popped, but the five in the brooder had a rough night. At some point between midnight and 7 a.m. the brooder lamp went out and the were flat on the floor, cold and stiff. The oldest has recovered, the youngest passed, and the other two are in a fight for their life, they can't stand any more.