Nausea and vomiting caused by nap: one consider the improper diet before going to bed, eat too much, sleep, gastrointestinal peristalsis slow, no digestion, indigestion caused by; two consider the sleep process, due to improper living, the stomach after the cold, the stomach loss and vomiting caused by the drop. Properly drink some hot water, or ginger tea to warm the suspension of vomiting, if not relieved, the use of some drugs to help digestion such as morpholine, stomach tablets, compound digestive enzymes, etc., pay attention to the abdomen warmth.