Which of the following best characterizes a night of sleep?
A) We begin the night in light sleep and end in deep sleep.
B) We pass from light sleep to dream sleep to deep sleep.
C) Our depth of sleep alternates up and down many times.
D) We alternate from the waking state to dream sleep about six times.

Question

Quizplus · Accepted Answer

Sleep cycles through different stages, including light sleep, deep sleep, and REM (dream) sleep, multiple times throughout the night, causing the depth of sleep to alternate.

Which of the Following Best Characterizes a Night of Sleep