During the night, two types of sleep alternate with each other; they are:

Question

Quizplus · Accepted Answer

REM (rapid eye movement) and NREM (non-rapid eye movement) sleep are the two main types of sleep that alternate during the night. During NREM sleep, the body is in a state of rest and relaxation, with slower brain waves and little to no eye movement. REM sleep, on the other hand, is characterized by rapid eye movement, increased brain activity, and vivid dreaming. These two types of sleep are important for different functions in the body, and disruptions in the normal sleep cycle can have negative effects on overall health and well-being.

During the Night, Two Types of Sleep Alternate with Each