If the bed is empty, the traditional feng shui called "the sun is not a star", easy to give a sense of not practical.

床后若为空，传统风水称之为“太阳不着星”，容易给人不踏实之感。

youdao

Feng shui had to be considered: A new round window receives morning sun, and a wall was built to block the chi flowing in from the front door from going out the opposite windows.

WSJ: A Country House Outside Shanghai