The poor sleep quality of patients depends mainly on the following reasons: Firstly, this condition may have some relationship with the environment of sleep, for example, the quality of sleep will not be too good in the environment with poor air circulation or more confined environment. The second aspect is mainly related to the patient’s own psychological factors, such as having a characteristic personality, including excessive concern for health or daytime dysfunction, etc., usually more anxious and worried emotionally, which may have an impact on sleep. There are also some patients with more negative emotions, more depressed and restless inside, which will affect the quality of sleep, and it is also easy to form a vicious circle of the more worried about sleep, the more likely to sleep.