What is the general height of a sofa backrest?

In general, the height of the backrest of a Sofa is generally suitable to be between the shoulders and ears of an adult. According to the height of the Chinese people, if it is from the ground, then the backrest height of the sofa is about 68 to 72 cm. It is understood that some people nowadays like to use a high-backed sofa, but this approach is not too scientific, people's shoulders on the back, there is a certain distance between the waist, back and the back of the sofa, sit for a long time It is full of backache, and it is prone to fatigue.

Regarding the problem of the height of the backrest of the sofa, scientific research shows that the backrest sofa has obvious advantages. The most comfortable sofa is the natural backrest after the person sits up. The back, head and shoulders of the person are almost all with the backrest of the sofa. The greater the contact area, the greater the comfort of the body and the more natural sitting posture. Usually the angle between the seat cushion and the back of the sofa is not perpendicular to 90 degrees, but is between 100 degrees and 108 degrees.