Since they are young and small why not put them in a box and bring them in at night. Certainly easier than getting up all night long.It got down to the low 30s and high 20s so I wasn't having it I went out and got them at like 2am because even though we covered the wire floor there are 1-2 inch wide gaps all over the coop for ventilation and those had me worried. Every time I went out for my hourly checks throughout the night they were directly under the lamp huddled together so it made me think they weren't staying warm enough since they weren't moving from up under it. Thank you for recommending that I take up close pics of my coop and post them on the coop section I am going to do that as soon as it warms up a little more.