The bedside should not face west, explained by modern science, because the earth rotates from west to east. If the head falls asleep in the west or east, blood will often rush to the top of the head, so sleep will be unstable, sleep quality will be poor, and people will become very listless for a long time.
From the point of view of modern science, the head should not face east, because the earth moves from west to east, so the blood will often rush straight, which will lead to poor sleep. However, foreign scientists advocate sleeping in the east, because the magnetic field facing north will interfere with the changes of the brain and the biochemical movement of the human body at the same time, which is easy to make people uneasy.
According to the above two different statements, you can choose the north-south direction in a compromise, because the geographical magnetic field is the north-south direction, and ensuring that the human body and the magnetic field lines sleep in the same direction can make people fall asleep more easily.
The best place to put a bed is to let the person sitting on the bed see the windows and doors, and the sun shines in at dawn.
It is better for the bedside to face the wall than the window, which also comes from the principle of emphasizing reality rather than emptiness in Feng Shui. Don't face the toilet, sewer and stairs at the bedside, which will have an impact on people's health.