After eating a large Thanksgiving dinner, you watch your uncle while he sits on the couch. You notice that his head begins to droop and his legs start to twitch. Suddenly, he bolts awake and sees you looking at him and through short breaths says that he wasn't really sleeping. Which stage of sleep was he most likely in?

Question

Quizplus · Accepted Answer

Stage 1 sleep is characterized by the transition from wakefulness to sleep and is a light sleep stage where people can be easily awakened. The symptoms described, such as the head drooping, leg twitching, and the sudden awakening with denial of sleep, are typical of someone nodding off in stage 1 sleep.

After Eating a Large Thanksgiving Dinner, You Watch Your Uncle