The ancients believed that the south belonged to fire and the north belonged to water. Sleeping with head facing south is easy to be affected by excessive internal heat, and sleeping with feet facing north is easy to be invaded by moisture, which makes the five elements in the body unbalanced and affects the quality of sleep. The ancients recommended the principle of "supporting the yang by calming the yin" to adjust the direction, so it is more appropriate to sleep with your head facing north or east.
Geographically, most parts of China are hot areas in the south and cold areas in the north. Sleeping with your head facing south will expose your body to hot air, while your feet facing north will be exposed to cold air. This temperature difference makes it difficult for your body to adjust, which is not conducive to sleep. The ancients thought that it was easier to achieve the balance of yin and yang when sleeping with the head facing east or north, and to ensure the quality of sleep.
In terms of architectural structure, most ancient houses were open to the south and backed by the north wall. Sleeping with your head facing south is directly facing the door, which is easily disturbed by external light and noise, affecting the stability of sleep. Sleeping with your head facing north or east can avoid the door and hide in the corner of the house, which is more conducive to creating a quiet and comfortable sleeping environment.
Precautions for sleeping
1, avoid sleeping at the end of the corridor or corner. The air circulation at the end and corner of the corridor is not smooth, and people's yang is more concentrated during sleep, which easily leads to excessive yin and poor sleep quality. Feng Shui suggests sleeping in the middle of the room with good air circulation.
2. The direction should be correct. According to the principle of geomantic omen, sleeping in the south is better, followed by southeast or southwest. Sleeping directly to the north will gather too much yin, which is not conducive to sleep. The south is the yang side, which is beneficial to sleep quality. If the north-south direction is difficult to change, you can also sleep left and right.
3. avoid the foot of the bed facing the door. In geomantic omen, the foot of the bed is facing the door, which is easy to cause the inflow of wealth but difficult to gather, affecting wealth. You can choose the arrangement of the bedside near the door. If it is really hard to avoid, you can also put a screen at the door to block it.