What does the wind chime hanging on the bed do?

Wind chimes should be hung outside the house, on the windowsill or on the balcony. You can't hang it in the bedroom, let alone beside the bed. Aside from superstition, from a scientific point of view, people need to "avoid light and sound" when sleeping. "Avoid light" mainly refers to "refracted light" (the mirror cannot shine on the bed). "Sound avoidance" mainly refers to "high-frequency sound" (no bells can be hung at the bedside). "Refracted light" and "high-frequency sound" will disturb your visual and auditory nerves, on the one hand, they will not rest, on the other hand, they will make you hallucinate.