I don't soak often, but if my BP gets gross-ified by laying in poop or she has a pee in her favourite hide in the middle of the night then I give her a bath. She seems to like the water though, so I don't think it stresses her out usually. I have put her in the bath with a small amount of warm water and she enjoyed exploring around and swimming. With that being said, I am not recommending this and it could just be that certain snakes don't mind. Nor do I do this often (less than once every couple months).