In the bedroom layout, the most taboo of bed placement is that the bedside is close to the window. Of course, people will give you many explanations for this problem, the most of which is from the perspective of Feng Shui.
In fact, Feng Shui is a humanistic philosophy. To be exact, it belongs to a science. We can understand it as a culture, but we must never blindly believe in it and rely on it.