Why did the ancients have square pillows?

It would have been uncomfortable, and there is no obvious advantage to a square pillow because it is too hard and too high.

The reason for the tall, hard pillows is that the ancients always prized a high pillow. Primitive times, people with stones or straw bundles, etc. will head high to sleep, and later with the development of the process before the emergence of ceramic pillows, ceramic pillows originated in the Sui Dynasty, the development of the Tang Dynasty, the two Song Dynasty and the Jin, Yuan period of the most flourishing, Ming and Qing Dynasties gradually decline. p>Ancient people's high pillow:

First of all, let's understand the historical allusion to the high pillow. It is said that during the Warring States period, war and banditry were endless, and the people were often infested and lived in uneasiness. In order not to be invaded at night, the army and the people did not dare to sleep on pillows, all lying on the ground, with their ears on the ground to sleep, listening to whether there are intruders' footsteps. And to sleep on a pillow means to sleep with a pillow raised. It is a metaphor for being carefree and not having to worry.

So the ancients liked to use stones, ceramics, jade and other such as high pillow. Also because of the coolness, after a person falls asleep, the temperature of the head will rise, and the high temperature will lead to difficulty in falling asleep. Ancient summer there is no high-tech to cool down, the ancients slept on a hard pillow has a cool, heat physical properties, they are using this simple way to help them fall asleep, low-carbon and environmental protection.

In fact, this viewpoint is wrong today. This kind of pillow is easy to cause cervical spine strain, is not conducive to the health of the cervical spine. Maintaining the normal physiological state of the cervical spine while sleeping allows the entire body to relax and rest together. The height of one fist is usually the most appropriate.

In addition to high and hard pillow, in fact, the ancients also have fabric soft pillow. Only that is used in winter, not easy to save, difficult to pass down, so rarely seen.

Baidu Encyclopedia - Pillow (Sleeping Bedding)