I thought he was dead! :(

[Stormy]

So this morning was the morning after I moved. When I woke up and turned Geno's heat lamp on he was balled up kinda oddly in the back and I couldn't see him breathing. I very quickly got him out and he was stiff and cold. I thought it got too cold in there, but it was 73ish degrees I think. His head moved a little bit and I got him under the covers with me to try to warm him up? After like 5 minutes he started moving more and more until he was full on slithering around. Then I went ahead and put him back. I really really hope I didn't do anything wrong and if I did I'm sorry I promise I'd never do it intentionally I LOVE GENO like no other and if I knew I was putting his life at risk I'd do everything in my power to fix it. He's an amazing snake and I never want anything to happen to him. Please tell me what happened if you know! His UTH was on all night like always. Thank you

Is there a reason why you turn his heat lamp off at night? 73 is pretty chilly for a ball python; my suggestion would be to leave the heat lamp on 24/7.