How to place the bed in the bedroom scientifically

It is best to have the head of the bed facing the north-south direction. This is because the direction of the earth's geomagnetic field is north-south, which is helpful for sleep. Do not place the bedside under the window, otherwise you will feel unsteady when sleeping. If there is strong wind or thunderstorm, this feeling will be even more uneasy. The head of the bed should not face the bedroom door, otherwise people in the living room can see the bed in the bedroom at a glance, which will make the bedroom lack of tranquility and affect rest.