Sleeping on your left side is generally better for digestion, pregnancy, and acid reflux, as it helps gravity move waste and keeps stomach acid down, while right-side sleeping can worsen reflux but may be preferred for certain heart conditions, though overall comfort and individual needs are key, with side sleeping often best for snoring and back pain.
The healthiest sleeping position often depends on individual needs, but side sleeping (especially the left side) is generally favored for reducing back/neck pain, aiding digestion (acid reflux), improving circulation, and helping with sleep apnea by keeping airways open, while back sleeping is great for spinal alignment but can worsen snoring and reflux. Stomach sleeping is usually discouraged due to neck and back strain.
People with heart failure often experience shortness of breath that worsens when they sleep on their left side, Salas said, leading many to prefer their right.
The best side to sleep on depends on your personal preference, as well as the support of your mattress and pillow. Left-side sleeping may benefit pregnant people or those who experience acid reflux. Right-side sleeping may be preferred by people with heart conditions.
Sleeping on your left side can also keep pressure off your internal organs. Staying your left side can also help move waste through the colon while sleeping. Stomach and gastric juices are also lower than your esophagus, which can reduce digestive issues and heartburn.
The Mayo Clinic explains that left-side sleeping lessens pressure on the organs, especially the liver and kidneys, and promotes healthy blood flow. This is especially important during pregnancy. Sleeping on your left side allows the most blood flow to reach a growing fetus, according to Stanford Medicine.
The unhealthiest sleeping position is generally considered to be sleeping on your stomach (prone position), as it forces your neck to twist and flattens the natural curve of your spine, leading to neck, back, and shoulder pain, numbness, and poor sleep quality. An overly curled fetal position is also harmful, causing joint stiffness and restricted breathing, while sleeping on your back can worsen snoring and sleep apnea for some individuals.
And sleeping on the left side is best because it keeps pressure off internal organs and promotes healthy blood flow. "When you are in that third trimester of pregnancy and when you sleep on your back, the uterus is compressing your inferior vena cava. It's compressing the arterial system," says Dr. Somers.
Right-Side Sleeping: Often the Safest for the Heart
This position places the heart higher than the rest of the body, reducing strain and making breathing easier.
Right side sleeping has assorted benefits for heart health, such as reducing pressure on the area and making it easier to breathe. This can help those suffering from heart complications get a more restful night sleep. It can also prevent symptoms and discomfort from getting worse.
Common symptoms of heart attack while sleeping
Chest pain: You will be suddenly jolted awake. Shortness of breath: You feel as if you can't catch your breath. Cold sweats: Sudden cold sweating for no apparent reason.
Resting your arms down alongside your body is one of the most natural positions for side sleeping. It keeps your shoulders and neck in a nice, neutral line—less chance of pinching a nerve or waking up feeling twisted.
The 3-2-1 sleep rule is a simple wind-down routine: stop eating and drinking alcohol 3 hours before bed, stop working/mentally stimulating activities 2 hours before, and turn off screens (phones, TVs) 1 hour before sleep, helping you transition to rest by reducing stimulants and preparing your mind and body. It's often part of a larger 10-3-2-1-0 rule, which also adds no caffeine 10 hours prior and no hitting snooze (0) in the morning.
While it might look a little strange, sleeping with a pillow between your knees can be excellent for your sleep health. From back pain relief to better sleep posture, an extra pillow for your legs has tons of benefits for side sleepers. Plus, it's downright comfortable.
According to Neha Kashyap, reporting for the dailyRx, “Researchers from Stony Brook University found that side sleeping, compared to back or stomach sleeping, may more effectively remove brain waste and reduce the risk of Alzheimer's, Parkinson's and other neurological diseases.”
Positioning yourself on your side or stomach can help the airways stay open to reduce snoring and alleviate mild apnea, Salas says. Reflux and heartburn: If you suffer from heartburn, sleeping on your right side can make symptoms worse, Salas says.
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Side sleeping is generally considered the best position for breathing. Sleeping on your side naturally keeps your airway open. As a bonus, it's often recommended because it can also keep your neck and spine aligned to reduce back pain.
Sleeping without a pillow may help some people who sleep on their stomachs, but it's not a good idea for everyone. Side or back sleepers often find that sleeping without a pillow puts pressure on their neck and back. This can reduce the quality of sleep and lead to back pain and neck strain while sleeping.
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While some studies suggest that sleeping on the left side might exert additional pressure on the heart, there is not enough evidence to conclusively determine that it is bad for heart health. Most experts agree that individual comfort and underlying health conditions should guide sleep position choices.
Sleeping on your front is considered unhealthy because it can inhibit breathing and cause irregular curvature of the spine. The turning of the head to one side when sleeping in this position is another cause of such a curvature. All of this can lead to inflammation and pain in the neck muscles in addition to back pain.
There are several reasons why you sleep with one leg bent up, also referred to as the figure 4 sleeping position. It may provide stability in bed, help with temperature regulation, or ease discomfort from pain or medical conditions.
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