The reason why we use high and hard pillows is because the ancients always respected peace of mind. In primitive times, people used stones or straw bundles to hold their heads up and sleep. Later, with the development of technological process, ceramic pillows appeared. Ceramic pillows originated in Sui Dynasty and developed in Tang Dynasty. It reached its peak in the Song, Jin and Yuan Dynasties and gradually declined in the Ming and Qing Dynasties.

Extended data:

The peace of mind of the ancients:

Let's take a look at the historical allusions of rest easy. It is said that during the Warring States period, there were wars and bandits, and the people were often harassed and lived in anxiety. In order not to be violated at night, the soldiers and civilians dare not sleep with pillows. They all slept on the ground, with their ears pressed to the ground, listening to the footsteps of the invaders. Rest easy means sleeping with a pillow. Metaphor carefree, don't worry.

Therefore, the ancients liked to make high pillows with stones, ceramics and jade. It is also because of the coolness that the temperature of the head will rise after people fall asleep, and the high temperature will make it difficult for people to fall asleep. There is no high technology to cool down in ancient summer, but the hard pillow used by the ancients to sleep has the physical properties of cooling and removing heat. This is a simple and practical method they use to help themselves sleep, which is low-carbon and environmentally friendly.

In fact, this view is wrong today. Such pillows are easy to cause cervical strain, which is not conducive to cervical health care. Maintaining the normal physiological state of cervical spine during sleep can make the whole human body relax and rest together. Usually the height of a punch is the most appropriate.

In addition to tall and hard pillows, in fact, the ancients also had cloth soft pillows. It is only used in winter, and it is difficult to preserve and pass on, so it is rare.

Baidu Encyclopedia-Pillow (Sleeping Bedding)