What Side To Sleep On For Heartburn?

What Side to Sleep On for Heartburn

The best side to sleep on for heartburn relief is the left side. Sleeping on your left side helps reduce the symptoms of heartburn because of the way your stomach and internal organs are positioned. Left-side sleeping can allow gravity to play a role in reducing acid reflux, making it less likely for stomach acid to flow back into the esophagus.

Anatomical Reasons

To understand why the left side is preferable, we must delve into the anatomy of the digestive system. Your stomach sits to the left of the esophagus. When you lie on your left side, the angle between your esophagus and stomach is more acute. This positioning creates a sort of natural barrier, which makes it harder for stomach acid to escape into the esophagus. Conversely, lying on your right side leaves the lower esophageal sphincter (LES), a ring-like muscle at the bottom of the esophagus, in a more relaxed state, making it easier for stomach acid to reflux.

The Role of Gravity

Gravity is another key factor in why the left side is better for heartburn. When you sleep on your left side, gravity helps keep the junction between your stomach and esophagus lower than the level of gastric acid in your stomach. This reduces the risk of acid moving upwards into the esophagus. On the other hand, when you sleep on your right side, gravity can work against you, making it easier for acid to flow back into the esophagus.

Scientific Studies

Various studies and scientific research have backed the claim that sleeping on the left side can alleviate heartburn symptoms. For example, a study published in the *Journal of Clinical Gastroenterology* found that lying on the right side increased acid exposure in the esophagus in heartburn patients compared to lying on the left side. Another study in *The American Journal of Gastroenterology* also showed that left-side sleeping resulted in a significant reduction in acid reflux.

Practical Tips for Left-Side Sleeping

If you’re not accustomed to sleeping on your left side, it can be challenging to make the switch. Here are a few tips to help you adjust:

Pillow Positioning

Using a body pillow can make it easier to stay on your left side throughout the night. Place the pillow behind your back to prevent rolling over to your right side.

Mattress Choice

Consider a mattress that provides adequate support. Memory foam mattresses adapt to your body shape and can help keep you in a stable position. Moreover, pillows that elevate your head can further reduce the chances of stomach acid flowing back into the esophagus.

Elevate the Head of Your Bed

Elevating the head of your bed can be beneficial if you find it difficult to stay on your left side. An incline of 6 to 8 inches can use gravity to your advantage, helping to keep stomach acid where it belongs.

Diet and Lifestyle Modifications

Changing your sleep position is just one part of managing heartburn. Here are some dietary and lifestyle changes that can complement left-side sleeping:

Eating Habits

Avoid large meals, especially before bedtime. Smaller, more frequent meals can make a difference. Also, steer clear of spicy, fatty, or acidic foods that can trigger heartburn.

Avoid Alcohol and Tobacco

Both alcohol and tobacco can weaken the lower esophageal sphincter, increasing the likelihood of acid reflux. Reducing or eliminating these substances from your lifestyle can have a significant positive impact.

Weight Management

Carrying excess weight, especially around the abdominal area, can increase pressure on the stomach and lower esophageal sphincter. Regular exercise and a balanced diet can help manage weight and reduce heartburn symptoms.

Other Sleeping Positions and Their Impact

While the focus has been on the benefits of left-side sleeping, it’s useful to understand how other sleeping positions affect heartburn.

Right-Side Sleeping

As mentioned, sleeping on the right side can exacerbate heartburn symptoms. This position tends to relax the lower esophageal sphincter, making it easier for stomach acid to flow back into the esophagus.

Back Sleeping

Back sleeping can be a double-edged sword. While it can help keep your spine aligned, it can also increase the risk of acid reflux if your head is not properly elevated. If you prefer sleeping on your back, ensure you use an elevated pillow to minimize the chance of acid reflux.

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Stomach Sleeping

Sleeping on your stomach is generally not recommended for people with heartburn. This position can put additional pressure on the stomach and the lower esophageal sphincter, exacerbating acid reflux symptoms.

Benefits Beyond Heartburn

Left-side sleeping doesn’t just benefit those suffering from heartburn. This sleeping position can have several other health benefits as well.

Improved Digestion

Sleeping on your left side can facilitate better digestion by promoting the flow of waste through your digestive tract. This position leverages gravity to help food and waste move through your digestive system more efficiently.

Better for Pregnant Women

Pregnant women are often advised to sleep on their left side to improve blood flow to the fetus and reduce the risk of complications. This position also helps in reducing pressure on the back and internal organs, making it more comfortable.

Heart Health

There is some evidence to suggest that left-side sleeping can benefit people with heart conditions. This position may help improve blood flow and reduce the risks associated with sleep apnea, a condition that can be detrimental to heart health.

Personal Preferences and Habit Formation

While left-side sleeping offers numerous benefits, it’s crucial to recognize that personal comfort and preference play a significant role. It’s not unusual for people to have difficulty adapting to a new sleep position. Here are a few strategies to make the transition smoother:

Gradual Adjustment

If you’re a habitual right-side or back sleeper, try gradually spending more time on your left side each night. Begin by lying on your left side for a short period and gradually increase this duration until you feel more comfortable.

Using Props

Using pillows or cushions not just for support but also as positional aids can help. Place a pillow behind your back and one between your knees for better alignment and comfort.


Consistency is key in habit formation. It may take several weeks for your body to adapt to the new sleeping position fully. Stay consistent in your efforts and give your body the time it needs to adjust.

When to Consult a Healthcare Professional

While adjusting your sleeping position can significantly mitigate heartburn symptoms, it’s essential to recognize when you should seek medical advice. Chronic heartburn can be a symptom of GERD (Gastroesophageal Reflux Disease), a more severe condition that may require medical intervention.

Persistent Symptoms

If you find that heartburn persists despite sleeping on your left side and making lifestyle modifications, consult a healthcare provider. Persistent symptoms could indicate a more severe underlying condition.


In some cases, medication may be necessary to manage heartburn. Over-the-counter antacids or prescription medications can provide relief while you implement lifestyle changes like left-side sleeping.

Alternative Remedies

While left-side sleeping can provide significant relief, other natural remedies can complement this approach.

Ginger and Herbal Teas

Ginger has natural anti-inflammatory properties that can help with digestion. Drinking ginger tea before bed may offer additional relief. Similarly, chamomile or licorice tea can soothe the digestive tract.

Apple Cider Vinegar

Though it may seem counterintuitive to consume an acidic substance for heartburn relief, some people find that a small amount of apple cider vinegar diluted in water can help balance stomach acid and reduce symptoms.


Probiotics can promote a healthy balance of gut bacteria and improve digestion. Consuming probiotic-rich foods or supplements can enhance your digestive health and reduce the likelihood of acid reflux.

Finishing Thoughts

Dealing with heartburn can be a nightly challenge, but something as simple as changing your sleep position can provide significant relief. Sleeping on your left side uses both anatomical and gravitational advantages to reduce the chances of acid reflux. Coupling this strategy with dietary changes, lifestyle modifications, and possibly medical consultation can present a comprehensive approach to managing heartburn effectively.

By understanding the reasons behind the efficacy of left-side sleeping and using practical tips to make the transition, you can not only alleviate heartburn but also enjoy a better quality of sleep and overall health. While personal preferences will always play a part in how you choose to sleep, the evidence strongly supports giving left-side sleeping a try if heartburn is a recurring issue for you.


  • Aiden Lawrence

    I'm Aiden Lawrence, a certified Sleep Science Coach and senior editor of GoodSleepHub, proud parent of two amazing kids, and a pet lover with a cat and a dog. Join me as we explore the world of sweet dreams and comfy pillows. Let's make bedtime the highlight of your day!

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