Western health care view holds that the position of the bed should be north-south, with the head facing north and feet facing south when sleeping. The reason is that the earth is a big magnetic field with north and south poles, and people are a small magnetic field with magnetism and polarity. The magnetic field lines of the earth start from the North Pole and extend through the ground to the South Pole. People's sleep conforms to the magnetic field lines of the head, north foot and south foot. Strengthening bioelectricity is beneficial to blood flow and improving sleep quality.
However, Chinese medicine believes that the principle of "nourishing yang in spring and summer and nourishing yin in autumn and winter" can only be met if the head faces east and the feet face west in spring and summer, and the head faces west in autumn and winter.
Both views make sense. Just buy a bed with wheels. In fact, a new view of sleep is: sleep as comfortably as you want!