Insomnia is a sleep disorder in which the initiation and maintenance of sleep are impaired, resulting in the quality and quantity of sleep not meeting the physiological needs of the body and seriously affecting the social function of 13 questions. Long-term insomnia does not provide the body with sufficient rest, recovery and energy accumulation, which can lead to serious internal environmental disorders and threaten human life and health. At present, nearly a quarter of the world’s population is plagued by insomnia, and up to 500 million people in China have sleep problems. Insomnia has become increasingly common, with sleep disorders in the elderly, young and middle-aged people, and even primary and secondary school students. Insomnia has become a public health problem of widespread concern. At present, in addition to pharmacological treatment, the role of non-pharmacological treatment for insomnia has received widespread attention. The specific practices of sleep hygiene guidance for patients are: ① Arrange a regular work and rest schedule, do not stay up late, go to bed and get up on time every day, and avoid excessively long lunch breaks during the day or prolonged lying in bed without sleeping; ② Do not do things in bed that are not related to sleep, such as watching TV and reading; ③ Ensure sufficient exercise during the day and avoid strenuous exercise before going to bed; ④ Avoid forced recollection of negative events of 13 questions before going to bed; ⑤ Avoid substances that affect sleep before bedtime, such as coffee, cigarettes, alcohol, stimulating foods and central excitatory drugs; ⑥ Early dinner time and avoid being too full; ⑦ Ensure that the bedroom is in an environment conducive to sleep, with quietness, clear air, maintaining proper temperature and humidity, and avoiding strong light stimulation, etc. Sleep hygiene instruction is the basis of various non-pharmacological treatments”, usually combined with cognitive-behavioral therapy, which can significantly reduce the level of arousal in the onset phase of sleep.