Sleeping on the right side is not unhealthy for most people, but it may worsen nighttime acid reflux in some cases. Left-side sleeping can help reduce heartburn and acid exposure, although it is not automatically the best position for everyone.
Side sleeping may also help some people who snore or have sleep apnea, while back sleeping can be comfortable when the neck and spine are properly supported. The right pillow and mattress can make a major difference by keeping the body aligned and reducing pressure or stiffness.
There is no single perfect sleeping position for everyone. The best choice is one that feels comfortable and supports your individual needs, but persistent pain, frequent heartburn, loud snoring, or pauses in breathing during sleep should be discussed with a healthcare professional.
