The most common adverse effects of taking sleeping pills include the following: I. Increased sleep, if the normal sleep time is 7-9 hours, it is possible to sleep too much after taking sleeping pills, more than 9 hours a day. Second, there is obvious sleepiness during the day, patients sometimes metabolize slower after using the drug, lasting longer, and also still feel sleepy during the day, which will affect a certain degree of daily activities. Third, dizziness, fatigue and other hangover effects, also appeared on the second day of medication, patients feel weak, fatigue, intoxication-like feeling, the next night can be improved. Fourth, there is a certain degree of dependence and addiction, seen in the old sleeping pills, with benzodiazepines as the main representative such as clonidine, sulphasalazine, long-term use of the patient may have dependence, leading to withdrawal difficulties.