If you’re referring to the viral “If you always sleep on your right side, you should…” claim, there isn’t a universal medical rule saying that right-side sleeping is dangerous or that everyone should switch positions.
What right-side sleeping can affect
Heartburn/reflux: Sleeping on the right side can sometimes worsen acid reflux, while left-side sleeping tends to reduce nighttime reflux in many people. (pubmed.ncbi.nlm.nih.gov
)
Heart health: For most healthy people, there isn’t good evidence that routinely sleeping on the right side damages the heart. People with certain heart conditions may have individual comfort preferences, but they shouldn’t change prescribed treatment based on social-media advice.
Breathing: Sleep position can influence snoring and obstructive sleep apnea. For many people with sleep apnea, sleeping on the side rather than the back can be helpful, although either side may be preferable depending on the individual. (aasm.org)
Pregnancy: Later in pregnancy, side sleeping is generally recommended rather than sleeping flat on the back. Either side can be used; there’s no requirement that everyone sleep exclusively on the left. (acog.org)
So should you stop sleeping on your right side?
Not necessarily. If you sleep comfortably on your right side and wake feeling well, there’s usually no reason to change simply because of a viral warning.
If you have frequent nighttime heartburn, loud snoring, choking/gasping during sleep, or significant daytime sleepiness, those symptoms are more important than which side you sleep on and are worth discussing with a healthcare professional.
