Many patients with lumbar disc herniation often ask, “Do I need to sleep on a hard bed for my lumbar disc herniation?” Through my years of work experience, combined with some domestic and international academic articles, I can give the following suggestions and reasons for sleeping in a hard bed. The human spine has four normal physiological curvatures, from top to bottom are the anterior convexity of the cervical spine, the posterior convexity of the thoracic spine, the anterior convexity of the lumbar spine and the posterior convexity of the sacrococcygeal bone. A hard bed can give full support to the spine in a lying position to avoid the spine being in an abnormal curved position. At the same time, bed rest helps to reduce the pressure on the intervertebral discs, and a good lying position is more conducive to maintaining the normal lumbar curvature, reducing the tension of the ligaments behind the lumbar spine, and relaxing the lumbar muscles, thus reducing the symptoms of low back pain. The current consensus is that the intervertebral disc can have some self-repair ability during the process of conservative treatment and bed rest. This involves a very important question in the process of conservative treatment, how to choose a suitable “bed for lumbar disc herniation patients”? Here is a recognized method: lying flat on the mattress, hand to the neck, waist and hip to the thigh between the three obvious bend in the flat, to see if there is no gap; and then turn over to the side, with the same method to try the body curve depression parts and the mattress between there is no gap, if not, it proves that the mattress and your natural curve of the neck, back, waist, hip and leg during sleep fit. Therefore, patients with lumbar disc herniation, it is recommended to insist on bed rest during the acute period of the attack, and during the rehabilitation period, if available, also try to get more opportunities for bed rest, and at the same time, according to the above method, choose a suitable mattress, which is very important for the success of conservative treatment of lumbar disc herniation.