If the patient’s bed is relatively hard, there will be obvious lumbar pain when resting in bed, especially when resting in bed for a long time. Because the bed is too hard, it is easy to squeeze and friction lumbar muscles, ligaments, especially for the lumbar supraspinous ligament, it is easy to be too hard bed compression, thus causing the supraspinous ligament edema, will get up and move with obvious lumbar pain. Then the bed is too hard, also easy to lead to have obvious lumbar muscles, fascia cold, which will also cause obvious muscle, fascia spasm, and this situation will cause obvious lumbar pain, especially in the morning out of bed activities, lumbar pain symptoms are particularly obvious.