Oh you poor thing! Don't feel guilty about having Molly, i think Mia is just trying to cope with having a little sister. I Know from when Natalie has been unwell, it takes her a while to go back to how she was, even then she is different to before. (sorry if that sounds confusing but hopefully you know what i mean) I haven't been in ur situation but wanted to say i feel for you. Maybe, try to establish a new bed time routine? Some quiet time with Mia, if possible..maybe when you see her start rubbing her eyes read her a story..after a few days maybe make the milk and put it next to her while you share a story and she may pick it up...drink it and drift off. It can't be easy having to share you all of a sudden. Goodluck