I looked at a house today that had six bedrooms, but four of the bedrooms were at the back of the house. This faced a pretty garden to the north, and we’re in France so that means they received no sun. All winter long and no sun. There were no side windows on the corner bedrooms. Nearly every house arranges the bedroom on the south wall (for all day sun) or the east wall (for morning sun). Maybe you could have a guest room facing north since you don’t want guests to stay. But why would you design things such that four out of six bedrooms got no sun? Were they nocturnal?