5 Reasons Why You Should Sleep On Your Left Side

3. Less Heartburn.

It can be a side effect of eating before bed, as a prone position may allow stomach acid to more easily creep up your esophagus. Interestingly, scientists have found that sleeping on your left side can minimize heartburn while sleeping on the right can cause it to flare up. It may be down to the stomach’s residence on the left side of our bodies.