The problem is usually poor alignment, not the side itself.
For example, if your upper leg falls dramatically forward, your pelvis can rotate.
If your pillow is too high, your neck can bend.
If your mattress is too soft, your body may sink unevenly.
If your mattress is too firm, your shoulder and hip may experience excessive pressure.
The goal is to create a relatively neutral position from your head through your spine and hips.
You don't need perfect anatomical alignment.
You simply want to avoid obvious positions that repeatedly cause pain.
14. Could Right-Side Sleeping Affect Digestion?
This is another area where online claims can become exaggerated.
You may see statements suggesting that sleeping on your right side either "slows digestion" or "damages your stomach."
There's no good reason to interpret right-side sleeping that dramatically.
Body position can influence how digestive contents move, particularly in relation to reflux.
But your digestive system doesn't stop working because you sleep on your right side.
Your stomach, intestines, pancreas, liver, and other organs continue functioning during sleep.
The more relevant concern is whether a particular position worsens your symptoms.
If you experience nighttime reflux, left-side sleeping may be worth trying.
If you don't have digestive symptoms, there is no need to become anxious about sleeping on your right.
15. What About the Liver?
The liver occupies a large portion of the upper-right abdomen, which sometimes leads to claims that sleeping on the right side puts excessive pressure on it.
For a healthy person, simply lying on the right side doesn't mean you're compressing or damaging your liver.
The liver is protected by the rib cage and surrounding structures.
Your organs are not loose objects that become crushed simply because you turn onto one side.
However, people with certain medical conditions may receive individualized recommendations regarding sleep position.
If you've been diagnosed with liver disease or another abdominal condition and have been given specific positioning advice, follow that guidance.
Otherwise, there's no need to avoid your right side simply because the liver is located there.