Avoid foods that trigger your heartburn. Foods that trigger heartburn differ from person to person. Common foods and drinks that can cause heartburn and interrupt sleep include alcohol; caffeinated drinks like colas, coffee, and tea; chocolate and cocoa; peppermint; garlic; onions; milk; fatty, spicy, greasy, or fried foods; and acidic foods like citrus or tomato products. Keep a food diary to help you track which foods may trigger your heartburn.