Sudden regurgitation and vomiting while sleeping are manifestations of reflux esophagitis, which is mainly caused by irregular diet and abnormal rhythmic peristalsis of the esophagus. The phenomenon of reflux of gastric contents can occur when frequent full meals are eaten, while activity decreases and gastric peristalsis is too slow and overburdened. When too much food is eaten at dinner and more food remains in the stomach contents before going to bed, the symptoms of gastric reflux will occur during sleep. In this case, the first thing you should do is to regulate your diet, try to have three regular meals, eat in moderation, and avoid excessive overeating. At the same time, you can eat more light and easy to digest food, such as millet porridge and so on, and then eat more coarse fiber food, can promote the peristalsis of the gastrointestinal tract, to promote gastric emptying. In addition, you can take appropriate oral gastric power drugs, such as Mosapride, to improve the symptoms.