My oldest female recently had a litter of three, healthy babies. This was less than a week ago. Now she's been laying down whenever she isn't walking around. She'll lay down to drink and eat as well. She'll even come out of her hiding area and lay in the open. I have never seen her do this before so I'm just wondering if this is anything to be concerned about or if she's just used to the babies nursing so she lays down for them.