A Simple Change in Sleeping Position That May Improve Your Comfort and Health

Yes, but use extra pillow support. A pillow thick enough to fill the space between your shoulder and ear prevents neck strain. A body pillow hugged to your chest can also reduce shoulder pressure.

What if I wake up on my back every morning?
Totally normal. Most people change positions 10-30 times per night. The goal isn’t perfection—it’s spending more time on your left than you otherwise would.

Does this help with snoring?
Side sleeping (either side) is generally better for snoring than back sleeping, which allows the tongue and soft palate to collapse into the airway. Left side specifically hasn’t been shown superior to right for snoring, but both beat back.

Is left-side sleeping safe for everyone?
For the vast majority, yes. As noted above, those with specific heart conditions should follow their doctor’s guidance. Otherwise, it’s considered safe and beneficial.

Can I train myself to sleep on my left side?
Absolutely. Use the pillow techniques above. Some people sew a tennis ball into the back of a pajama shirt to prevent back sleeping. Within a few weeks, your body adapts.

The Bottom Line
Sleep isn’t just rest—it’s active recovery. Your body is working while you dream, and the position you choose influences how efficiently that work gets done.

Left-side sleeping offers gentle, gravity-assisted support for: