The reasons for poor sleep quality at night may be the following: 1, sleep environment problems, if the sleep environment is too noisy, with bright light stimulation or stuffy air and no circulation, with unpleasant odors, will affect the quality of sleep. 2, emotional problems, patients with stress, anxiety, depression and other mental disorders will also affect the quality of sleep, often leading to excessive dreaming, nightmares, early awakening, difficulty in falling asleep after waking, need Anti-anxiety and antidepressant treatment for their emotions. 3, respiratory sleep apnea syndrome, which is also a relatively common disease, especially in obese people, patients because of structural problems in the throat or excessive obesity, resulting in airway collapse during sleep affect breathing. The patient’s body as a whole is hypoxic, especially the brain is hypoxic obviously cause sleep quality is particularly poor, even if the sleep time is sufficient still feel very tired.