How do you say sleeping in the hole along the kang?

In ancient China, there were many customs, one of which was the orientation of the head when sleeping. Most buildings in our country face south. Beds or kangs in houses are also placed or built along the north and south. It is correct to keep lying in the north-south direction while sleeping. If someone doesn't sleep in the direction of building a kang, it is called "Shunkang Cave". According to the old man, it is very bad to sleep with your head facing west and your feet facing east. It is easy to lead to insomnia, dreaminess, unrealistic sleep, easy to be frightened, and even easy to attract the soul of the dead. There is an ancient saying in China that "the dead sleep with their heads facing north", which means that when sleeping, don't sleep with their heads facing north. The reason is that there is sunshine in the south, and most houses choose to sit facing south when building. This architectural style is conducive to sunlight entering the room, which is bright and particularly warm. The south belongs to Yang, and the north belongs to Yin. When people died, the ancients used to head north and go to the "underworld". According to ancient geomantic omen, if a person sleeps with his head facing north for a long time, it is easy to hurt Yang and lead to insomnia and dreaminess. Ancient people were superstitious about this, so people passed it down from generation to generation, and it was forbidden to sleep with head facing north and feet facing south.