There are many types of sleeping pills, such as the more commonly used benzodiazepines, which have a sedative-hypnotic effect, as well as anticonvulsant, anxiolytic, muscle relaxant, etc. The more commonly used ones are the short-acting drugs such as zopiclone, the intermediate-acting drugs such as alprazolam and the long-acting drugs such as diazepam. In addition to benzodiazepines, there are barbiturates, diphenylmethane, and other types of drugs. The main mechanism of action of sleeping pills is to achieve the effect of hypnosis through the diffuse inhibition of the cerebral cortex by the drug. When choosing sleeping pills, it is important to choose the medication according to the specific type of symptoms under the guidance of the doctor, including the dosage of the drug, should strictly comply with the doctor’s instructions, to avoid the emergence of serious adverse complications.