What kind of mattress is best to choose from the function of the mattress. The function of mattress is to ensure that consumers get healthy and comfortable sleep. A good mattress has two standards: first, no matter what sleeping position a person is in, his spine can be kept straight and stretched; Second, the pressure is equal, and people can fully relax when lying on it. This involves the hardness of the mattress.
Extended data
The hardness of the mattress depends on the hardness of the internal spring. In addition to supporting hardness, the spring must have good resilience, which is the so-called rigid-flexible combination. Too hard or too soft, the rebound is not ideal.
People who lie on a mattress that is too hard are only under pressure at four points: head, back, hip and heel, and other parts of the body are not fully implemented. In fact, the spine is in a stiff and tense state, which not only fails to achieve the best rest effect, but also harms health if you sleep on such a mattress for a long time.
A mattress that is too soft will droop as soon as people lie down, and the spine will bend for a long time, which will cause oppression to the internal organs. After a long time, it will be unhealthy and uncomfortable. Therefore, you should choose a mattress with moderate hardness.
A good mattress can not only make people have a comfortable sleep, but also be good for their health. Generally speaking, long-term wrong sleeping posture, especially improper use of mattress, will cause the displacement of vertebral segments, which will stimulate the nerves inside the spine and lead to the gradual loss of normal function of nerve-controlled organs.
Baidu encyclopedia-mattress