When there is a tumor or metastasis in the lumbar spine, there can be pain in the lumbar muscles at night, which is the pain characteristic of spinal tumors, for resting pain during sleep. Second, osteoporosis, when the spine osteoporosis can also appear at night when the spine pain, when the lumbar spine has a lax compression fracture pain more obvious, then to take early X-ray, CT spine to early diagnosis, if necessary, blood tests, endocrinology to further identify the cause. Third, severe lumbar muscle strain and lumbar dorsal myofasciitis can also occur when sleeping with lumbar pain, which should be diagnosed by early physical examination and examination to exclude other diseases.