Spilled milk

It’s absolutely fine! Baby will cry if it’s bothering them but most likely they won’t even notice. Unless it’s sodden and making them cold then don’t worry it’ll dry and they will appreciate being asleep more than being woken for it!

This happens to us frequently! It is not worth the wake up and back to sleep struggle! She will let you know if you need to change her.

I think it should be fine. When she wakes up you can clean her and make sure she’s completely dry especially her neck folds. My daughter had a yeast infection under her folds when she was in the nicu from milk. We just clean and dried her neck well and they prescribed her some sort of ointment but my mil also recommended corn starch which that helped a lot too!