The human body has a unique curve, not a single plane. Sleeping on a mattress that is too hard and a single hardness, only the head, back, buttocks, and heels can bear the pressure, which will make the spine in a state of stiffness and tension. The back muscles provide support, which not only fails to achieve the desired relaxation effect, but also forms a confrontation between the mattress and the body. A mattress that is too soft will not support the body's weight, change the normal curve of the body, and cause symptoms such as stooping and hunchback.
So, how can we accurately determine the "degree" of the mattress' softness and hardness? When buying ordinary mattresses, there is basically no problem to be solved, only by feeling. Because the choice of whether the mattress is soft or hard involves many issues, such as height, physical condition, and disease states, such as cervical spondylosis, frozen shoulder, lumbar muscle strain and so on. It's not that you feel comfortable sleeping on a soft mattress, it really suits you, but there are no hard indicators that can be judged, you can only rely on your feelings. But it feels too illusory. It is easy to be biased due to the different feelings of softness and hardness of each person. It is easy to be induced. For example, the same mattress, under the strong praise and guidance of the shopping guide, you will feel very comfortable. , It fits the body very well, but after buying home and sleeping for a while, I found that the mattress is not suitable.
