Regular physical activity can significantly enhance sleep quality by promoting deeper sleep and reducing the time it takes to fall asleep. Engaging in exercise helps regulate the body's internal clock, aligning sleep cycles with wakefulness. Furthermore, physical activity can alleviate stress and anxiety, which are common barriers to restful sleep. The benefits of exercise on sleep can create a positive feedback loop—better sleep can improve exercise performance, while improved physical fitness can lead to more restful nights. However, it's essential to time workouts properly, as exercising too close to bedtime may have the opposite effect.