So, last night, my pet rat was crawling all over my bed and sometimes stop and just spawl his whole body out and just lie there for a few minutes. Then he'll get up, clean himself, walk away and then do it again after a while. I'm not sure why, but I didn't really know how to google this, but all I know is that his whole body is flattened on the bed and he tends to crawl before doing so. I read that it might be because he's overheated or something. So I turned on the A/C since it was slightly warm and I put him in the sink with water in it trying to cool him down. He seemed to stop after doing so. So was this an overheated reason? Or is it something else?