Should You Sleep On Your Right Side Or Your Left Side?

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It might sound trivial, but your sleeping position can greatly affect your overall well being. Depending on your age and body type, one sleeping position may work better than others.

Side sleeping is overwhelmingly the most common sleep positionmore than 50% of the population rests on their side! But should you sleep on your right side or your left side? We’re here to help you figure that out!

Should You Sleep on Your Right Side or Left Side?

Side sleeping isn’t just common; it also can be one of the healthiest sleeping positions. But which side should you sleep on? You might think it doesn’t really matter, but some medical professionals have found different benefits of sleeping on each side.

That said, these tips should not replace medical care. If you have a condition, it’s best to speak to your doctor for their advice.

Who Should Sleep on Their Left Side?

Who Should Sleep on Their Right Side?

Benefits of Sleeping on Your Left Side

Sleeping on the left side can prove beneficial for many different types of people. Let’s take a closer look:

sleeping pregnant woman

Pregnant People

Most doctors recommend that pregnant people sleep on their left side because the heart pumps blood more efficiently in this sleeping position and it alleviates pressure on the liver. In fact, there are many things to consider when you’re awaiting the arrival of your newborn. Here’s how to get the best sleep during your pregnancy (and after).

People with Acid Reflux

If you suffer from acid reflux, you may know that it’s generally not a good idea to lie down right after eating a meal. Due to the shape of the stomach and the angle of its connection to the esophagus, it may also not be wise to rest flat on your back. For the best results, doctors recommend resting on your left side because this limits the amount of stomach acid exposed to the esophagus.

People Who Snore

When you rest on your back, your nasal passageways have a tendency to close up, which can cause you to snore. Sleeping on your left side can help naturally open the airways and make breathing easier. You may also find relief if you rest on your right side, but doctors believe sleeping on your left side to be more effective. It’s also the recommended sleeping position for people with sleep apnea.

Those with High Blood Pressure

Because blood vessels are located on the right side of the body, some doctors believe sleeping on the left side will relieve pressure and help people with high blood pressure.

Folks with Digestive Issues

When you rest on your back, gas doesn’t leave your system quickly. If you often deal with bloating, constipation and stomach aches, try sleeping on your left side. In this position, gravity can help waste move from the small intestine to the large intestine.

Benefits of Sleeping on Your Right Side

Because our bodies aren’t symmetrical, sleeping on the left side isn’t right for every single person. There’s one group that can benefit from rest on their right side.

People with Heart Conditions

The results from a 2018 study suggest sleeping on the right side can help people with heart failure. In this sleeping position, sleepers may feel less pressure on their heart. The results also indicate that right side sleeping can help stabilize blood pressure and heart rate.

Full Moon Side Sleeping

It’s important to note, however, that sleeping on the left side showed no signs of harming people with heart conditions. Speak with your doctor for personalized advice and information.

Which Side Should You Sleep On?

Need a recap? Check out our handy chart below.

 Left Side SleepingRight Side Sleeping
Acid Reflux✔️ 
Back Pain✔️✔️
Digestive & Gut Health✔️ 
Heart Failure ✔️
High Blood Pressure✔️ 

How to Change Your Sleeping Position

Now that you know the benefits of side sleeping, you might want to change your current sleeping position. Creating new habits can be difficult, and it often takes a few weeks. If you need some help, check out these easy tips!

Place a Pillow Next to You

One of the simplest ways to switch up your sleeping position is to place a pillow next to you when you rest on your side. If you try to roll over on your back or stomach, the pillow will act as a barrier.

Attach a Tennis Ball to Your Shirt

If you’re a back sleeper, sew or tape a tennis ball to the back of your shirt. Stomach sleepers will want to attach the ball to the front of their shirt. Now, whenever you attempt to move back to your typical sleeping position, the tennis ball will create a bit of discomfort and encourage you to move to your side.

Switch Up Your Pillow

If you’re typically a back or stomach sleeper, chances are your pillow isn’t supportive enough. Side sleepers need firm pillows that can elevate the neck and keep the spine in a neutral position. Some, like the Eli & Elm Side Sleeper Pillow, have a unique U-shaped design that comfortably cradles the neck.

Check out our list of the best pillows for side sleepers for more ideas!

Add a Mattress Topper

Back and stomach sleepers need more lumbar support than side sleepers. If your mattress feels too firm, you could develop shoulder and hip pain. Of course, you can always purchase one of the best mattresses for side sleepers, but if you don’t want to spring for a brand new bed you can also add a mattress topper.

Layla Mattress Topper Feel

Most mattress toppers soften beds and offer more pressure relief. Look for one made out of thick memory foam, such as the ViscoSoft topper, for the best results.


What are the benefits of side sleeping?

Side sleeping has many benefits–it can alleviate acid reflux, soothe back pain and help people who snore.

Which side is better to sleep on?

Both sides have valuable benefits, but depending on your specific issues, one side may work better than the other. Folks with digestive issues, obstructive sleep apnea and high blood pressure may benefit from sleeping on the left side. Folks with heart failure, however, may feel more relief when they rest on the right side.

Which side should I sleep on if I am pregnant?

Doctors recommend pregnant people sleep on the left side because it can alleviate pressure on the liver and allow the heart to pump blood more efficiently. Sleeping on the right side during pregnancy could cause more discomfort.

Elisa Regulski

Elisa is the Editor of Mattress Clarity, where she analyzes sleep products and appears in review videos. A certified sleep science coach, Elisa's sleep tips have appeared in Readers Digest, Homes and Gardens, and 21 Oak. She earned a M.A in Mass Communication from Texas State University and a B.F.A in acting from Oklahoma City University.