According to the inquiry of Federal Mengfeisi official website, the professional sleep brand Federal Mengfeisi mattress under the Federal Furniture Group, according to the physical characteristics of Mongolian geographical race (yellow race) with long trunk and short legs, adopts advanced technologies and first-class materials such as spiral lock technology, LFK superelastic split spring, aerospace cotton and natural mulberry silk, and combines the traditional concept of rest and health preservation in China to push the sleep quality of Chinese people to a new height.