My Sulcata Boulder has been living exclusively outside for about 2 months. He is thriving, eating growing, soing great. I live in AZ and daytime temps are in the 90's, but lows are getting close to the high 50's. I am sure their will be mixed answers, but can anyone tell me what temps they have kept their baby sulcatas outside at successfully? He is 7 months old and about 4 or 5inches.