This is a form of evil spirits. It depends on whether the cornice of the roof faces the bedroom window or the door. It doesn't matter if there is no window to see this cornice. If there is a window and the cornice is facing the window, it is evil.
This can be put on the windowsill with Taishan stone or broad-leaved green plants to ward off evil spirits, which is easy to resolve without much problem.
I hope it helps you.