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The Best Sleeping Position for Acid Reflux

From SleepScore.com | August 28, 2021

If you have issues with acid reflux, you know the symptoms: burning in your throat, regurgitation, heartburn, and more. If it gives you issues when you sleep, this article has a great tip for which position is best for sleeping!


Burning in your throat, regurgitation, choking, coughing, heartburn…trouble sleeping all night long. The cause of this intense pain? Stomach acid. Now before you go bad mouthing stomach acid to all your friends, understand that stomach acid isn’t the bad guy here. It plays a very important role in digestion and overall gut health. The problem isn’t the acid. The problem is that for those with acid reflux or gastroesophageal reflux disease (GERD), stomach acid escapes to where it does not belong, into the delicate lining of the esophagus and sometimes even up into your lungs, throat, and sinuses. Plain and simple, stomach acid isn’t meant to be outside your stomach. The key to controlling nighttime acid reflux symptoms is to keep stomach acid where it belongs, in your stomach, and avoid potential sleep issues.

Gravity and anatomy play a huge role in finding relief from nocturnal GERD symptoms. During the day, you are most likely standing or sitting up so when stomach acid escapes, gravity and saliva quickly return this potentially harmful substance to the stomach. Also, when upright, your esophagus naturally flows down into your stomach. This quick return of acid to your stomach typically makes your symptoms shorter, as well as minimizes the potential damage acid can cause to the delicate lining of your esophagus and beyond.

How to Sleep with Acid Reflux
Nights are a different story, even with the best bedtime rituals. And, depending on how you are sleeping, your esophagus can actually be below your stomach allowing acid to freely flow out and then just sit in your esophagus, lungs, throat, and sinuses. This is not good for your body. Over time acid pooling in your esophagus can cause severe damage, such as peptic ulcers, strictures, and in more extreme cases Barrett’s Esophagus. In fact, if you have acid reflux at night, there is an 11-fold increased risk of developing esophageal cancer than those without nighttime acid reflux.

You don’t have to sleep sitting up to take advantage of gravity and anatomy at night. You aren’t a giraffe after all. How you sleep can directly affect how often you feel symptoms, how bad those symptoms are, and how long the acid sits in your esophagus. The good news is that you can drastically change your nights by changing the way you sleep.

Back Sleeping: Avoid Whenever Possible
What may be the best sleeping position for some could actually aggravate GERD symptoms. Back sleeping is the worst for those with acid reflux at night. When acid escapes from your stomach and you are sleeping flat on your back, it is able to flow freely into your esophagus and beyond…and stay there. Studies show that in this position, symptoms are often more frequent and tend to last longer because the acid has nowhere to go. The severity of your symptoms may also increase if you have stomach fat, which pushes down on your stomach forcing contents to escape. Back sleeping should be the #1 position to avoid at night, if you suffer from nighttime acid reflux.

Right Side: It’s not Right for Acid Reflux
Position #2 to avoid at night is…sleeping flat on your right side. When lying flat on your right side, your stomach is actually above your esophagus creating a leaky faucet spouting stomach acid into the delicate lining of your esophagus. This is especially true when your stomach is full. Interestingly, when lying flat on your right side, your reflux symptoms tend to be more liquid in nature leading to regurgitation, coughing, and choking, which can be very scary in the middle of the night. Since gravity is doing nothing for you in this position, the amount of time acid lingers in your esophagus is much longer so stay off your right side.

So, back sleeping is bad. Right side sleeping is bad. What’s a GERD sufferer to do?

Left Side: Reduces Reflux
Sleep on your left side. Gravity will work in your favor on your left side as your stomach is now positioned below your esophagus, which makes reflux more difficult. Should stomach acid escape, gravity is able to return it to your stomach quicker than when on your right side or on your back which is why the left is usually the best side to sleep on to avoid acid reflux. Where the right side often produces liquid reflux, when on your left side, reflux symptoms tend to be more gaseous in nature, which may be annoying but much less distressing. Studies show that symptoms are less frequent and less severe when on your left side as compared to on your right side or on your back making it the most desirable flat sleep position.

Benefits of Propping Up Your Body
Has your doctor recommended that you sleep at an incline using a bed wedge or putting blocks under your bed frame? Studies show that sleeping at an incline decreases reflux symptoms and allows your body to get stomach acid back to your stomach quicker. As long as your entire torso is elevated (not just your head and neck), sleeping at an incline gives gravity a power boost to return stomach acid to your stomach and keep it there.

Best Sleep Position for Acid Reflux: Incline Left-Side
So, what if you take the best flat sleeping position, aka the left side, and add an incline? Could the benefits be more than the sum of its parts?

Recent studies show that this is indeed the case. The compound inclined, left-side sleeping position makes acid reflux at night virtually impossible because your esophagus is now positioned well above the level of stomach contents, even if your stomach is full. And, if you do reflux, gravity is able to quickly return the contents to your stomach. Whew. This ideal sleep position provides a double whammy of decreasing your GERD symptoms and providing protection from prolonged acid exposure to your esophagus, throat, lungs, and sinuses.

So, what’s the secret to controlling your acid reflux symptoms at night and finally getting good, quality sleep? Proper sleep positioning. Discover relief with the ideal position that maximizes the power of gravity and anatomy.