Patients with lumbar disc herniation should sleep on a hard bed, starting with the pathogenesis of lumbar disc herniation, lumbar disc herniation often occurs in the case of prolonged bending, bending will make the physiological curvature of the lumbar spine disappear, from physiological convexity to physiological lordosis, the lumbar disc will be squeezed to the rear, over time will cause disc degeneration, rupture of the fibrous ring, the nucleus pulposus will enter the spinal canal, the sciatic nerve Compression. When sleeping on a very soft bed, the patient’s spine will sink, and in the process of sinking, the physiological anterior convexity of the spine will disappear and change to physiological lordosis, and maintaining an abnormal posture for a long time during a whole night’s sleep will easily cause the aggravation of disc herniation, and sleeping on a hard bed will prevent the spine from sinking and can play a normal supporting role for the spine. Generally when sleeping on a hard bed, it is best to add a small low pillow under the lumbar spine, which can provide better support and can prevent the deterioration of herniated discs.