LuLuLuLu, any changes to the sleep patterns at home?
Hope it's improving!
Our toddler is now getting a little bit better - when she wakes at 4:30 she wants to go out of the room and sleep on the couch - DH follows and they sleep again till 5:30, slightly more humane.
We started a rewards chart (not my kind of thing but we needed to come to a compromise as a family - we couldn't have everyone suffering) and she did fantastic for a week in a row - then reverted to noisy wakings. So we just need to reiterate it all again so she understands the expectations.
Have you tried something like that? Could it work for you?