Oh! You’ve said some of what I said. I reply as I go, so I often don’t realise that the same has already been posted further down than I have caught up to. Sorry!According to an article posted earlier they arrived late on Saturday afternoon. The kids were playing outside but were in bed by 10pm. Everyone seemed tired from the journey.
I'm guessing that they talk about the bedroom window a lot because it was wide open in the morning and they must have remembered it being closed the night before. The sister said she left out the window possibly repeating her parents assumption.
She was sleeping upstairs. She was in one bed and her two siblings in the other. She's the eldest child which probably explains why she got to sleep on her own. The upstairs bedroom is actually a mezzanine, so its very open to the ground floor. This is why its such a mystery.