What kind of bed is comfortable? A good mattress should be designed according to ergonomic principles, firm but not tough, comfortable and not too soft, and can support the body's weight on average, to maintain the normal curve of the spine. People of the cervical, thoracic and lumbar spine has 24 joints, these joints are fibrous cartilage connects. Spine issue 31 pairs of spinal nerves in the body, to control the various organs. If the perennially poor sleep, poor quality bed, attempt to dislocation of the spine, thus stimulating nerves, affecting organ function. Mattress selection cannot rely on feel, none too soft or too hard. Do not think that the harder the mattress, the less prone to collapse. Some poor quality mattresses to cater to consumers ' psychology to do hard, the trick is doing very fine wire waist size in order to save material costs, but poor stretch, use for any length of time would collapse.
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