Bed can relieve the spasm of the lumbar muscles, can make the lumbar muscles and intervertebral discs to get sufficient rest and relaxation. Sleeping bed should choose a hard bed or put a harder Simmons and other elastic sleeper on a plank bed, both comfortable, and can make the waist to get sufficient rest and relaxation. Traditional brown bandage or nylon silk bandage bed, wire bandage bed and wire bandage marching bed, etc., people lying on it due to the role of weight, the body will show the central low, four corners of the high state. In fact, the use of longer brown bandage bed, elasticity is worse, people lying on it, lumbar muscles still continue to be in a state of spasm, so that the intervertebral discs can not be fully rested and relaxed, very harmful to the waist. Many people sleep in this bed, the next morning after waking up will feel back pain and weakness, in the long run, very easy to cause lumbar muscle strain, can also induce lumbar disc herniation. In addition, soft sofa or Simmons mattress is too soft or less elastic, will also produce the same disadvantages as the traditional taut bed. There are many people sleeping in these unsuitable beds for a few days can induce lumbar muscle strain, the whole day back pain and weakness, a long time to find the cause, after replacing the hard bed lumbar muscle strain can be miraculously healed. Sleeping position to double lower limbs slightly flexed position, side lying is good, so that the pressure in the lumbar intervertebral discs can be reduced, lumbar muscle relaxation, in order to obtain adequate rest.