Excessive drowsiness can be caused by a number of conditions. Narcolepsy causes daytime tiredness and abrupt sleep episodes. Prolonged sleep combined with chronic fatigue is a symptom of idiopathic hypersomnia. People who have sleep apnea are drowsy throughout the day because it disrupts their sleep at night. Depression, certain infections, and hypothyroidism are other factors. For safe, efficient, and long-term management of excessive sleep, treating the underlying disease through medical diagnosis, therapy, and lifestyle changes is essential. Some people utilize wakefulness-promoting medications, such as Modvigil 200, to combat drowsiness.