Sleep humming is a special performance of sleep, generally called sleep moaning or nocturnal groaning, this situation is due to the patient in the process of sleep exhaling phase prolongation, the reason is not very clear, generally with the patient in a deep sleep state or fatigue has a certain relationship. This condition during sleep is actually a manifestation of respiratory disorder, but it is milder than the typical apnea syndrome symptoms, and the damage to the human body is also slight, and it does not affect the normal rest of the patient, only that the patient will feel dry mouth, sore throat, hoarse voice and so on the next day. This does not affect the general health condition and can be treated without any special treatment. Patients can also be advised to eat a light diet and drink more water to keep the pharynx moist.