A heavy meal close to bed gets in the way because the body is still working on it when you lie down, and lying down soon after eating can bring on reflux. Finish a big meal at least 3 hours before you lie down.
Give the meal a head start
Health agencies keep this advice simple. NHLBI suggests avoiding heavy or large meals within a few hours of bedtime, and the CDC lists avoiding large meals before bed as a habit that helps sleep. A light snack is okay.
Lying down presses food back up
Lying down soon after a heavy meal can let stomach contents come back up into the food pipe. That is reflux. NIDDK notes that eating at least 3 hours before you lie down may ease reflux symptoms at night. Burn and fullness can break the night.
Some foods are more likely to set it off. High-fat foods, spicy foods, chocolate, coffee, mint, citrus, tomatoes, and alcohol are commonly linked to reflux symptoms.
Stay upright before you lie down
For a heavy meal, finish it at least 3 hours before lying down. A light snack is fine if hunger would wake you. It is not a second dinner. Do not use a large dinner to make up for skipped meals.
If food already comes back up at night, NIDDK suggests raising your head 6 to 8 inches off the bed, with a wedge or pillows under your head and upper back. This is a position change, not a product.
What this does not do
A longer gap will not repair every hard night. This note is not a treatment. It is not a product. It does not promise sleep. If sleep stays hard most nights, a clinician is the person who sorts that out.
If you wake and stay in bed trying to force the night back, leave the bed for something quiet and dim.
What to do when you are awake in bed
If the meal came with a drink, the alcohol is a separate reason the later night breaks.
Why a drink near bed wakes you
Questions people ask
How long should I wait after eating to go to bed?
For a big meal, aim for at least 3 hours before you lie down. NIDDK notes that eating at least 3 hours before lying down may ease nighttime reflux symptoms, and NHLBI suggests avoiding heavy meals within a few hours of bed. A light snack closer to bedtime is a different story.
Is a bedtime snack okay?
Usually, yes. Health agencies warn about large, heavy meals near bed, not a small snack. Something light is less likely to leave your body busy digesting when you lie down. If certain foods tend to bother you at night, such as spicy or high-fat ones, keep those earlier in the evening.
Why do I get heartburn when I lie down after dinner?
Lying flat soon after a heavy meal can let stomach contents come back up into the food pipe. That is reflux, and the burning and fullness can break up the night. Finishing the big plate earlier and staying upright for a while afterward helps. If it happens often, mention it to a healthcare provider.