Ok, so my coop is very similar to the coop found here. I have the back divided with three boards to make four nesting boxes. My four hens are around 15 weeks old, but they all cram themselves into one box to sleep! I am worried they are going to suffocate themselves if they continue to sleep like this. Is there any way I can intervene? I thought they didn't usually sleep in the nesting boxes at all? I tried putting them each in their own, but they just hopped back into one. It's not that cold, around 50 at night but they continue to do it!