Wow ~ I've never had a parent ask to stay the entire day! I always joke with my daycare parents that the transition time is mostly for them but this is a little much.

Did you get a response from your email about not staying the entire day next week? If not, I would call and speak to her directly so there are no uncomfortable misunderstandings come Monday. The ladies gave you some great reasons to tell the Mom why she isn't to stay and just reassure her that her little one is going to do great!