Everyone has different soft and hard preferences for mattresses. Some people like to sleep on hard beds, while others prefer to sleep on soft beds. What kind of mattress is a good mattress?
Thirty years ago, in Germany, there was a discussion about whether it was a hard mattress or a soft mattress. The discussion caused the participation of the German ergonomics and led to the study of human sleep posture. The result of the study is that both a hard mattress and a soft mattress are not good for healthy sleep, and the correct mattress should be a high-elastic mattress.
That is to say, when the force applied to the mattress is large, the mattress should drop much and generate more support for the human body, and vice versa. This is because the human body is a curve. Only on a high-elastic mattress can the body and the back be supported, especially the waist should have strong support, so that the human body can relax and fully rest. Since the human spine is shallow S-shaped, it is necessary to have a support of appropriate hardness when lying down, so the elastic mattress is essential for the comfort of the human body and the quality of sleep.
The choice of mattress can not rely solely on self-feeling, too soft or too hard to be appropriate, but based on the difference between height and weight. A lighter bed with a lighter weight makes the shoulders and hips slightly plunged into the mattress and the waist is fully supported. The weight-sinker is suitable for sleeping on a hard mattress. The strength of the spring can give each part of the body a proper fit, especially if the neck and waist are well supported. You can refer to the height, weight and soft and hard table of the mattress, which will be more scientific.
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