Sleeping pills without side effects do not exist, only the relative side effect size is different, need to be based on the patient according to their own situation. At present, sleeping pills are divided into three types of drugs, namely barbiturates, benzodiazepines and non-benzodiazepine sleeping pills. 1. Barbiturates: there are phenobarbital, isoamylbarbital and so on. The main effects are sedative-hypnotic, anticonvulsant, antiepileptic, anti-anxiety and so on. Commonly used in anesthesia before the administration of drugs, and antipyretic and analgesic drugs can be combined to enhance the latter’s analgesic effect. Adverse reactions include dizziness, headache, dysphoria and respiratory depression. 2. Benzodiazepines: such as diazepam, nitrazepam, eszopiclone and so on. The main role is sedative hypnosis and anticonvulsant. Oral absorption effect is relatively fast, compared with barbiturates, drug toxicity is low, the safety range is relatively large. Severe cardiovascular disease, myasthenia gravis, glaucoma, etc. are prohibited, and should be used with caution during lactation. This kind of drug is easy to cause dizziness, drowsiness, fatigue and other adverse reactions. 3. Non-benzodiazepine sleeping pills: zolpidem, zaleplon and so on. They are suitable for sedation and hypnosis, anti-anxiety, anticonvulsant. There are headache, dizziness, dry mouth, nausea and vomiting, fatigue and other adverse reactions, suitable for short-term poor sleep patients. Severe hepatic and renal insufficiency, sleep apnea syndrome, persons with myasthenia gravis, and patients with severe respiratory distress are prohibited. If you need to take sleeping pills, please consult a professional doctor, follow the doctor’s instructions, and use medication reasonably.