What should you know about indigestion in middle of night?

Lying down after eating can make stomach contents move upward, causing burning, sour taste, belching, or upper-abdominal discomfort. Late or heavy meals may also leave you feeling full or nauseated during sleep. Nighttime symptoms can occur with acid reflux, a hiatus hernia, gastritis, or peptic ulcer; gallstones may cause upper-abdominal pain, particularly after meals. The timing alone does not identify the cause.

Notice whether the episode is burning or cramping, where it is felt, how long it lasts, and whether it comes with vomiting, sweating, breathlessness, or pain elsewhere. These details help distinguish digestive discomfort from other urgent causes of chest or abdominal symptoms.

Sit upright rather than lying flat, loosen tight clothing, and take small sips of water if you can swallow normally. Avoid eating another large meal. For future nights, finish dinner earlier, choose a smaller evening meal, and note foods or drinks that trigger symptoms. Review regular medicines with a pharmacist or clinician rather than stopping them. Ask whether [Acid Reflux Medication](/treatments/medical-management/acid-reflux-medication/) is appropriate for you; do not use another person's prescription.

Get emergency help for chest pressure, breathlessness, fainting, cold sweating, or pain spreading to the arm, back, neck, or jaw. Seek urgent care for severe abdominal pain, vomiting blood, black stools, or repeated vomiting. Arrange a clinical review if nighttime indigestion keeps waking you, is worsening, or comes with swallowing difficulty, appetite loss, or weight loss.

Ask whether reflux, an ulcer, a hiatus hernia, or a medicine could explain the pattern. Ask how to time meals and prescribed treatments, whether testing is needed, and which nighttime symptoms require emergency action.