What characterizes Hypersomnolence Disorder?

Hypersomnolence Disorder is characterized by excessive daytime sleepiness despite obtaining sufficient sleep at night. Individuals with this condition may find themselves unable to stay awake during the day, experiencing persistent sleepiness that adversely affects their daily functioning. They may nap frequently, struggle to be alert when needed, and still feel tired after a full night's sleep.

This aligns directly with the characteristics of Hypersomnolence Disorder as defined in the DSM-5, highlighting the discrepancy between the amount of sleep an individual gets and their level of alertness and energy during waking hours. The other options do not relate to Hypersomnolence Disorder: they pertain to separate disorders, such as sexual dysfunction, conduct disorder, and fecal incontinence, which are not relevant to the symptoms and diagnosis of hypersomnolence.