Who wins?
Left side vs Fetal position
Left side wins 78% to 22%. 17 more put them in the same row. From Sleep Positions Tier List. Pick a side.
throwaway78785 on Left side: your stomach sits lower than the esophagus so no reflux, doctors agree
RealNugget69 on Fetal position: curled up like a shrimp, comfiest thing when it's cold
Sleep Positions Tier List: the full ranking