About three hours after he falls asleep,Bobby often sits up in bed screaming incoherently.His mother tries to awaken him,but with no success.The next morning,he remembers nothing.It appears that Bobby suffers from
A) night terrors.
B) narcolepsy.
C) sleep spindles.
D) sleep apnea.

Question

Quizplus · Accepted Answer

The description of Bobby's episodes is characteristic of night terrors, which are a type of sleep disorder that typically occurs during the first third of the night (a few hours after falling asleep), involves screaming or shouting, and often leaves the person in a state of confusion and disorientation upon awakening. Unlike nightmares, which occur during REM sleep and often involve vivid and memorable content, night terrors occur during non-REM sleep and are typically accompanied by physiological symptoms such as sweating and a rapid heart rate. Bobby's lack of recall the next morning is also consistent with night terrors, which are often not remembered by the person who experiences them. The other options (narcolepsy, sleep spindles, and sleep apnea) are unrelated to the symptoms described by Bobby.

About Three Hours After He Falls Asleep,Bobby Often Sits Up