Anyone any experience of this? We are thinking of turning the attic into a big master suite because it has the best views in the house and wonderful exposed beams, and it seems a waste it just being spare bedrooms and storage up there. But the kids would remain on the first floor, and I'm not sure how I feel about this. They are only 2 and a half and 8 months. So it's probably something we could aim to do a bit further down the line. But at what age is it ok to sleep on a different floor from your kids?