Sleep Study, also known as Polysomnography, is a detailed overnight test used to evaluate sleep quality and detect sleep-related disorders. During the study, sensors monitor your brain activity, breathing patterns, heart rate, oxygen levels, snoring, limb movements, and sleep stages. It is one of the most accurate methods to diagnose conditions like sleep apnea, insomnia, restless leg syndrome, and chronic snoring. A sleep study helps identify the root cause of poor sleep, daytime fatigue, or breathing interruptions, allowing doctors to create a personalized treatment plan for deeper, healthier, and more restful sleep.