For example, sleeping on your stomach may feel comfortable initially, but it forces your neck into an unnatural angle and puts pressure on your spine. This can result in back pain, stiffness, and discomfort upon waking. Similarly, sleeping with your arms above your head can restrict blood flow and irritate nerves, often leading to numbness or tingling in the hands and arms.

The fetal position, one of the most common sleeping positions, also has its downsides. When curled up too tightly, it can compress the lungs and spine, making breathing more difficult and reducing spinal flexibility over time.

According to sleep experts, the best position for your health is lying on your left side. This position supports proper spinal alignment, improves digestion, enhances blood circulation, and may help reduce symptoms of acid reflux.

To get the most out of your sleep, consider a few simple adjustments. Use a supportive pillow that keeps your head in line with your spine. If you sleep on your side, place a pillow between your knees to reduce strain on your hips and lower back. Choose a medium-firm mattress for balanced support, and create a restful sleep environment by limiting screen time before bed and keeping your bedroom cool, quiet, and dark.

Small changes in how you sleep can make a big difference in how you feel—both overnight and in the long run.