Hey, I'm not really an (outdoor) expert either, but those little rascals look fresh as can be. The weather is always a tricky thing, unfortunately, there's no real consistency anymore. I can't really give you any tips on how to survive the potentially frosty nights ahead. I currently have a little lady outside, but she's in a fabric pot. Since I don't want to trust the weather too much, I put a bucket over her for bad and cold weather and secure it with stakes. Not pretty, but so far it's working well.
In the bed it's a bit trickier, but maybe set up a cold frame over it. There are open cold frames with a liftable lid. Something like that maybe?! Otherwise, they look great, keep it up bro✌️😉