My chicks have been in their coop/run for a week now. I still have a heat lamp on them at night and have been locking themm in the coop at night blocking their chicken door with burlap because the nights have been kinda cool. Well today was beautiful and tonight its very mild out..I just realized that I hadnt gone out to coop them up and turn on their light when I got out there they were sleeping in the run. I turned on the light and put them to bed...My question is do I need to lock them in the coop at night and is it bad if they want to sleep in the run???? Also their coop and run is Extremely safe, covered with hard ware cloth and.guarded by 2 chickin loving pit bulls contained in a hot wired fened in yard