Why do I get heartburn every night?

Last updated September 3, 2026.

Nightly heartburn usually means reflux: lying flat removes gravity, late meals leave the stomach full, and triggers like coffee, alcohol, chocolate, and fatty food loosen the valve that holds acid down. Heartburn two or more nights a week meets the MedlinePlus line for GERD, a chronic condition worth treating. Pymander is a free AI doctor, 24/7 by text, and can help you map your triggers.

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