Secondly, from the perspective of Feng Shui, one should not put two pillows when sleeping. If two pillows are placed side by side at the bedside, one pillow is unnecessary in the middle of the night, which will attract some ghosts to the bed and have nightmares all night, which will affect your health.
Third, if two pillows are stacked together to sleep, it is not good from the health point of view. This height does not create a human sleeping position, but will cause cervical pain and other situations, and there will be bad posture of hunchback. It is suggested to test the customary pillow height and then buy a pillow with this height.
Fourth, there are some folklore that it is easy for a person to sleep with two pillows, and it is easy to have a ghost press the bed, and then feel that there are people around, and then the mind is clear, and the big bull market can't move, and it is firmly grasped. So far, there is no scientific basis to explain this situation.