Exercise significantly impacts sleep quality by promoting deeper sleep and helping individuals fall asleep faster. Physical activity regulates the body's circadian rhythm and reduces symptoms of anxiety and depression, which often affect sleep. Regular exercise elevates body temperature, and the subsequent drop during recovery can signal the body to prepare for sleep. Engaging in moderate aerobic or strength-training workouts can yield the most profound benefits for sleep quality. However, it’s essential to consider the timing of exercise, as vigorous activity close to bedtime may hinder sleep for some individuals.