If the patient has occasional insomnia it may not affect the mental state of the next day. Although the patient has fewer hours of sleep due to insomnia, if the patient’s sleep is deep enough and the brain is well rested, the patient’s spirit of the next day may not be affected in any way. If the patient’s insomnia is not in good spirits the next day, it may indicate that the patient’s sleep quality is worse. Research shows that the length of sleep is not directly related to the quality. In this case, if the patient can achieve about five hours of sleep, it may be helpful for the recovery of the patient’s body, and the patient’s life and activities the next day will not be affected, and the patient will be more energetic.