Niles has begun to fall asleep suddenly during the day, sometimes in inappropriate places. Niles is most likely suffering from

• A. narcolepsy.
• B. sleep apnea.
• C. not enough melatonin.
• D. insomnia.

Answer: (A)

Verified step by step guidance

1. Identify the symptoms described in the problem: Niles falls asleep suddenly during the day in inappropriate places.
2. Understand the key characteristics of each condition listed: Narcolepsy, Sleep Apnea, Not Enough Melatonin, and Insomnia.
3. Narcolepsy is characterized by sudden and uncontrollable episodes of deep sleep, often at inappropriate times.
4. Sleep Apnea involves interrupted breathing during sleep, leading to poor sleep quality but not sudden sleep episodes during the day.
5. Insomnia is characterized by difficulty falling or staying asleep, not sudden sleep episodes. Not enough melatonin typically affects sleep onset, not causing sudden daytime sleep episodes.
6. Based on the symptoms and characteristics of each condition, determine which condition best matches Niles' symptoms.