Back pain and sleep disorders are both common complaints in the elderly. Sleep is a complex issue reflecting psychosocial health, and comorbid psychosocial disorders are importment in the evaluation of senile patients with back pain aside from musculoskeletal systems. There has been evidence that persistent pain stimulation will induce sleep disorders and sleep deprivation will decrease pain threshold. To avoid this vicious cycle, focus on sleep disorders when managing senile patients with back pain may improve the treatment response. Furthermore, considering the simplexity and convinence, the improvement of sleep disorders may also be used as a functional indicator for evaluating the treatment effect of back pain, in place of the complicated comprehensive functional evaluation tools.