Sleep disorders account for about 15% of patients with insomnia. The patient’s intention to try to fall asleep often makes him excited or anxious, but instead becomes a driving factor for sleep disorders, for sleep produces excessive arousal, watching TV, reading books to divert attention, may fall asleep. There is also a sleep environment, time, may lead to insomnia, such as as as long as in their own bedroom can not sleep all night. If it is possible to fall asleep in the living room or sofa and inn, if it is a normal person, it is not good to fall asleep in an unfamiliar environment, while people with sleep disorders are exactly the opposite. In addition, if the patient often wakes up with unclear mind, feeling uncomfortable and depressed, with anxiety, impatience, fatigue, lack of energy, etc., all these symptoms indicate a sleep problem. There is also a test, polysomnography may show reduced efficiency of sleep, prolongation of sleep latency as well as one phase of non-rapid eye movement period, increased number of awakenings and shortening of three phases of non-rapid eye movement period, which can help to diagnose sleep disorders. The diagnosis of sleep disorders is mainly based on the medical history, after young middle age, and the prevalence is higher in women, as well as the sleep environment, post-wake performance, and polysomnography hints, which are helpful for the diagnosis of sleep disorders.