Sleep disturbances significantly affect physical performance by impairing cognitive functions, reducing endurance, and slowing reaction times. Lack of sleep can lead to increased fatigue, reduced motivation, and compromised immune function, all of which hinder athletes' abilities to train and compete effectively. Moreover, sleep is essential for recovery, as it is during this time that the body repairs tissues and restores energy levels. Therefore, ensuring adequate, quality sleep is critical for maximizing physical performance and overall health, particularly in those engaged in regular physical activities.