Hypersomnia is a sleep disorder characterized by excessive daytime sleepiness, even after a full night of sleep. Individuals with hypersomnia may struggle to stay awake during the day, often feeling the need to nap frequently. This condition can interfere with daily activities and overall quality of life. There are various causes of hypersomnia, including narcolepsy, sleep apnea, and certain medications. Diagnosis typically involves a thorough medical history, sleep studies, and sometimes questionnaires to assess sleep patterns. Treatment options may include lifestyle changes, medication, and addressing any underlying conditions contributing to the excessive sleepiness.