Melatonin is useful for improving sleep, shortening the time to fall asleep, improving the quality of sleep, significantly reducing the number of awakenings during sleep, prolonging the phase of deep sleep, and having a strong function of adjusting jet lag. Melatonin is an amine hormone secreted by the pineal gland in mammals that can improve sleep, but long-term application can easily lead to endocrine disruption, so it is not recommended that patients use melatonin to improve sleep for a long time. To improve sleep, it is recommended that patients can take Chinese medicines, such as Baile sleep capsule, sweet dream capsule, tranquilize the brain oral liquid, vermilion tranquilizer pill and other drugs to adjust the function of the internal organs to improve sleep, while patients should also develop the habit of regular rest.