Well I think it's normal...lol...depending on how new they are to you. The first night I put my chicks out in their coop (tight, insulated, w/a heat lamp), I kept dreaming that there was a frigid, raging wind and the door was wide open (and the heat lamp was laying there broken) and my little chicks were huddled together and frozen...I woke up scared to death in the middle of the night and went out to the porch. Sure enough, everything was fine, with the red glow of the heat lamp shining through their (double paned) window...LOL!! I've had a few dream similar to that. And I too had a looped area (where their heat lamp hangs from) that was stressing me out. I kept picturing them strangling themselves too!! I got rid of my loop it was bothering me so... I don't have grandkids, but I've often commented about not worrying this much over my own child when he was little...LOL. I think you (your subconscience) just know(s) that they are very dependent on you, and you want to be a good chicken mama!!