Your sleeping position can influence snoring, breathing, and acid reflux. Although sleeping on either side is generally better than sleeping on your back for people who snore, the left side may offer additional benefits for those who experience nighttime heartburn.

Snoring occurs when airflow is partially obstructed as the muscles in the throat relax during sleep. Sleeping on your back can allow the tongue and soft tissues to move toward the airway, increasing vibrations and making snoring louder. Switching to a side-sleeping position may help keep the airway more open.

Both the right and left sides may help reduce position-related snoring, but neither is guaranteed to work for everyone. The best position depends on individual anatomy, underlying health conditions, and personal comfort.

For people with acid reflux, however, sleeping on the left side is generally the better choice. The stomach’s natural position means lying on the left side can reduce the likelihood of stomach acid flowing backward into the esophagus, helping minimize nighttime heartburn and irritation.

Acid reflux can disrupt sleep by causing burning sensations, coughing, and discomfort. Starting the night on the left side may help people who experience both reflux and snoring, although persistent snoring may require additional evaluation.

Other habits can also improve nighttime breathing. Maintaining a healthy weight, avoiding alcohol before bed, treating nasal congestion, and keeping a consistent sleep schedule may help reduce snoring. For reflux, avoiding large meals close to bedtime and elevating the head of the bed can also be beneficial.

People with obstructive sleep apnea should not rely on sleeping position alone. Although side sleeping may reduce symptoms in some cases, treatments such as CPAP machines or oral appliances may be necessary following medical evaluation.

Pay attention to warning signs such as loud, persistent snoring, pauses in breathing, waking up choking, morning headaches, or excessive daytime sleepiness. These symptoms may indicate sleep apnea and should be discussed with a healthcare professional.

Ultimately, the left side is often best for acid reflux, while either side may help with snoring. If you experience both problems, trying left-side sleeping is a reasonable starting point. Small adjustments to your sleeping position and bedtime habits may help you achieve more comfortable, restorative sleep.