The square pillow size of the six-piece bedding set is: 40cm*80 cm.
40cm*80 cm. The height is generally 10cm--15cm.
It is reported that the aspect ratio of pillows is: 2:1, which is good for health
According to Xinhua News Agency, German experts recently discovered that the country’s traditional 80 cm × 80 cm square Pillows do not allow for a relaxing sleep, but can cause tension in the sleeper's shoulder and neck muscles.
Jens Anders, chief physician of plastic surgery and special plastic surgery at the University of Jena in Germany, wrote in the sixth issue of this year's medical magazine "Apotheken Umschau" published in Bayerbrunn, Germany, that length and width Pillows of 80 cm and 40 cm each with firm filling are better as they provide support to the head and ensure that the spine maintains its natural shape.