Health Benefits of Sleeping on Your Left Side, According to Experts

If you’re like many people, you may not give much thought to your sleeping position. After a full day of work, caring for family, preparing meals, and perhaps winding down with a show or book, you’re likely ready to fall into bed without much hesitation—simply grateful for a few hours of rest.

While getting enough sleep is essential, the way you sleep could also play a significant role in your overall health. Your body does a lot more than rest during those eight hours—it works to repair, regulate, and restore.

Everyone has a preferred way to sleep—some favor the right side, others the left, and some prefer lying on their back. But interestingly, research suggests that sleeping on your left side might offer certain health advantages.

Here’s why left-side sleeping may be worth considering:

Nighttime Relief from Heartburn

For those who suffer from acid reflux or heartburn, sleeping on the left side may offer natural relief. This position helps keep the stomach below the esophagus, reducing the chance of acid traveling upward and causing that familiar burning sensation during the night.

Supporting Liver and Spleen Function

Your sleep position can also influence organ performance. Lying on your left side may support better circulation to the spleen, which plays a crucial role in filtering blood and supporting immune function. Meanwhile, the liver—located on the right side—may benefit from gravity-assisted detoxification when you’re resting on your left.

Ideal Position for Pregnancy

Health professionals, including the Sleep Foundation, recommend left-side sleeping for pregnant individuals, especially in the later stages of pregnancy. This position helps improve circulation, reduce pressure on the liver, and support optimal blood flow to the placenta, creating a safer and more comfortable sleep environment.

Improved Digestive Health

Left-side sleeping might even assist with digestion. This position supports the function of the ileocecal valve, the junction between the small and large intestines, helping waste move more efficiently through the digestive system with the aid of gravity.

When to Adjust Your Sleeping Position

While left-side sleeping has its benefits, it’s not the only healthy option. Everyone’s body is different, and comfort matters. If sleeping on your left side leads to shoulder or hip discomfort, try alternating positions. Switching sides periodically can prevent stiffness and ease pressure points.

We hope you found these insights helpful! What’s your go-to sleeping position? Share your experience in the comments—your tips might help someone else get a better night’s rest.