What kind of bed mattress manufacturer we should sleep

What kind of bed mattress manufacturer we should sleep? 。 Hardness remember not hard to remember a principle mattress deformation, and soft to deformation is not too large. Might as well when choose the mattress, conducted according to the principle of: cm thick mattress, hand pressure sinking down cm appropriate; Cm thick mattress, slightly hollow cm soft hard moderate, and so on. 。 And degree lie on your back with the hand of suitable mattress can keep the spine natural stretch, and shoulder, waist and hip joint completely, leaving no gaps. Lie down on the mattress, the hand to the neck, waist and hip down to the thigh between this three obvious bending into horizontally, look have gap; To turn over to one side, try it with the same method curve concave parts of the body and is there a gap between the mattress. If the hand can easily penetration in the gaps, it indicates that the bed is too hard. If the palm of your hand close to gap, it shows that the mattress with people during sleep neck, back, waist, hip and leg natural curve apt. 。 Thickness of spring mattress ~ cm thick mattress is no bigger is better, but is associated with its supporting force, especially the spring mattress, if the length of the spring constant, bottom bedding thickening, in exchange for supporting force is not good. The thickness of the spring mattress ideal is to cm. When spring because of quality problems occur deformation, supporting force will influence, to change in time. Mattress with for a long time also must be replaced. As now use morer spring mattress, if time is long, the spring lose elasticity, retainer force will be affected, then use, is not conducive to maintaining the human body normal physiological bending of the spine.