The length-width ratio of the pillow is 2: 1, which is good for health.

(2 July 2002, 1 1:34)

According to Xinhua News Agency, a recent study by German experts found that the traditional square pillow of 80 cm× 80 cm in this country can not relax people's sleep, but will lead to muscle tension in the shoulders and neck of sleepers.

Jens Anders, an attending surgeon in plastic surgery and special plastic surgery at the University of Jena in Germany, wrote in the 6th issue of ApothekenUmschau, a medical journal published in Belbrun, Germany, that pillows with the length and width of 80cm and 40cm, respectively, and solid internal fillers are better, because they can support the head and ensure that the spine can maintain its natural shape.