There is a reciprocal relationship between snoring and sleep. Snoring is known as sleep apnea hypoventilation syndrome and there are three main types, obstructive, central and mixed. Frequent apnea hypoventilation in snoring tends to disrupt sleep, causing fragmentation of sleep structure and is found by polysomnography. The first one, presents sleep fragmentation. The second, affects sleep structure. Light sleep accounts for more components, deep sleep accounts for less, mainly these two aspects. A person’s poor sleep will, in turn, affect the function of the whole body, poor sleep, the patient is prone to repeated sleepiness during the day, and after sleepiness, it is easy to snore. After sleeping, the body relaxes, the upper airway, especially the soft tissues of the oropharynx are prone to collapse, after the collapse, snoring. There is also because of poor sleep, the body of some factors released more, prompted by eating more, and then prompted the weight gain, which is a complementary role, is a mutual influence.