1, when buying a mattress, you must pay attention to the hardness of the mattress. Too hard mattress only bears pressure at the 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 is harmful to health by sleeping 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.
2. When purchasing a mattress, pay attention to lying flat as much as possible, and reach into three obviously curved places between the neck, waist, buttocks and thighs to see if there are any gaps; Turn to one side and try to see if there is a gap between the concave part of the body curve and the mattress in the same way. If there is no gap, it proves that the mattress is very consistent with the natural curves of the neck, back, waist, buttocks and legs when people sleep, so the mattress can be said to have moderate hardness.