Wow, this reminds me of my rescue days. I had shelters w/heating pads under blankets for the kitties but sometimes Old Tom would be stubborn and sleep under the pine tree anyhow. Either that or the possums took over. I figure if they get cold enough, they'll use the shelter. I never brought any indoors, though, except for Coco Puff, whom I ended up keeping. So how was your night?