Answer:
Sarah’s most likely diagnosis is narcolepsy.
Explanation:
Narcolepsy is a sleep disorder caused by an alteration in the balance between some chemicals in the brain. It is characterized by excessive sleepiness during the day, even when the person slept well at night. Sleep attacks can occur at any time and in unusual situations. This disease is more common in young people and usually appears in adolescence, around 15 years of age, or later, around 35 years of age, and affects men and women.