My 8 girls seem to be sleeping too much. 4 of them are around 4 years old and the others about 1 1/2 years old. They go to bed early, usually by 6 pm and don't come out till 8 am or so. They don't seem to be laying very well either, probably need to get some artificial light going again. I live at about 9200 feet in the mountains and the nights are pretty cool but it seems weird to be waking chickens up, should be the other way around! Any input appreciated!