If the patient feels that he/she is insomniac all night, but his/her spirit is good the next day, these patients may have subjective insomnia, and if the patient’s perception of the sleep state is not very good, the patient is convinced of the existence of insomnia, and may also describe the existence of difficulty in falling asleep, difficulty in the maintenance of sleep, early awakening, or anomalous patterns. However, if the monitoring of polysomnography reveals that the patient’s sleep time, sleep efficiency and sleep structure are normal, and that these patients are mainly subjective insomniacs, then the patient’s sleep quality is actually better, and the next day’s mental condition is also better. Therefore, we suggest that we can not treat the patient in this situation for the time being, as long as the patient’s mental condition is better the next day, and the impact on the patient’s study and work is not significant. As long as the patient’s mental condition is better the next day, and the impact on the patient’s study and work is not great, there is generally no need for special treatment.