Sofa Bed Precautions

The height of the functional sofa bed sitting surface is preferably between 35-42 cm, which is about equal to the height of the human calf. Too high or too low size is not conducive to the relaxation of human muscles, long-term use is easy to cause body pain. The seat depth is between 48 and 55 centimeters is more appropriate, that is, when the back is as close as possible to the back of the sofa, the person's knee should still be outside the table. From the ground, the height of the sofa bed backrest should be maintained between 68-72 cm, within this range, the comfort of the human body is the strongest. In addition, the tilt of the backrest is best between 100-108 degrees, and the height of the handrail is more suitable between 62-65 cm.