Knowledge of sleep hygiene is of some significance to know not only for insomnia sufferers but also for healthy people. Many insomnia patients have insomnia related to their poor sleep hygiene habits. Knowing about sleep hygiene has a certain significance for the prevention of insomnia. The main content of sleep hygiene education is as follows: 1, the daily bedtime and wake up time is fixed; sleep has a certain pattern, adjust their “biological clock”, pay attention to the bedtime should not be too long, especially insomnia patients, often insomniacs in bed the more anxious, the more anxiety can not sleep, so control their bedtime. 2, so that the bed in a comfortable temperature; 3, do not sleep during the day; best not to sleep during the day, not to sleep well at night, and then sleep during the day often affect the quality of sleep at night. 4, do not put the alarm clock in the bedroom; 5, avoid coffee, cigarettes, especially later in the day; 6, the darker the bedroom the better; 7, dinner should not be too full, 2 hours before bedtime do not eat indigestible food; 8, maintain regular physical activity, but within 4 hours before bedtime, do not do strenuous exercise; 9, before bedtime schedule time to do relaxation and use relaxation techniques.