The image is warning about sleeping on your right side because of how it can affect acid reflux (GERD).
What it’s showing:
- Right side: The stomach sits above the esophagus in a way that allows gastric acid to flow back up more easily due to gravity.
- Left side: The stomach is positioned lower than the esophagus, so gravity helps keep acid down, reducing reflux.
Is this true?
Yes — research supports that:
- Sleeping on your left side can reduce nighttime acid reflux.
- Sleeping on your right side may worsen reflux symptoms in some people.
- Elevating the head of the bed also helps.
Who should care?
This mainly matters if you:
- Have GERD
- Experience heartburn at night
- Wake up with a sour taste or throat irritation
If you don’t have reflux issues, right-side sleeping isn’t generally harmful.
If you’d like, I can also explain why the stomach’s shape makes left-side sleeping better from an anatomical standpoint.*