DD9 does this on occasion. It makes me a wreck to find out she was up while I was sleeping! She knows she is not allowed to turn on the TV or do any projects etc, but she will move things. Like the night before her Christmas Party at school, she got up in the wee hours and checked out the gift I had ready for her teacher. She re-made the name tag, wrote little notes all over the outside of the card and told me in the moring that I had taped the card on the wront side, but she was up in the night and fixed it (so much for the project thing). She has changed the clothes I had laid out for her, set out a change of items for her lunch box and she told me once she went outside to get her jump rope off the patio! (the scared smilie is not working this morning)
She has been given strict instructions she is never to unlock any door and go outside. In fact I nearly grounded her until she is 35 for that one. Oh...the grey hairs are finding their way into my scalp like little unfriendly aliens taking over!