Iris has been asleep for less than an hour. Her parents are surprised when she walks into the living room, and they tell her to go back to sleep. The next day, Iris does not remember getting up after she went to bed. Iris appears to have experienced
A)a night terror.
B)somnambulism.
C)a nightmare.
D)an episode of sleep apnea.

Question

Quizplus · Accepted Answer

Somnambulism, also known as sleepwalking, involves getting up and walking around during deep sleep. It's common for individuals to not remember these episodes upon waking.

Iris Has Been Asleep for Less Than an Hour