She's just turned 3 and for the last few weeks has been waking at 5am. This morning it was 4.30am. Sometimes she's up 2-3 times a night as well. She moved into a bunkbed with her sister about 2.5 months ago and has never settled and slept as well as she did in her own room (which is now occupied by her 10yo sister who very much needs her own room).
We've tried the gentle retreat and it's not worked. Once she's decided that she's up for the day she screams the house down, like a banshee. She will attempt every trick in the book to get out of bed. Even if we get her into bed she will sit there bouncing up and down wired. Her sister who she shares with is the total opposite desperately needs sleep and is getting very disrupted. It makes no difference at all of she naps in the day or not, or the time she goes to bed. She's just totally wired and currently unwell, seems to be getting worse. This is classic overtiredness and I can see a link to behaviour in the day when she hasn't had enough sleep.
We have always been consistent about sleep since having children. Bedtime at 7 (or thereabouts) and up at 7. The rule has always been that if they wake after 6 they can look at books in bed, but she's up at 5 and isn't interested in books in the morning, she just wants to be loud and disruptive or play.
I really really want to avoid just getting her up. Both myself and my husband have jobs that need us to really concentrate and making mistakes would be terrible. We're pretty sleep deprived and need to find a way to help her sleep, so we can all start sleeping again.
Help!