Sleep begins in stage 1 and progresses into stages 2, and 3. After stage 3 sleep, stage 2 sleep is repeated before entering REM sleep. On average, we enter the REM stage approximately 90 minutes after falling asleep. The first cycle of REM sleep might last only a short amount of time, but each cycle becomes longer.
Stage 1 is the beginning of the sleep cycle and is a relatively light stage of sleep. Stage 1 can be considered a transition period between wakefulness and sleep. Stage 2 is the second stage of sleep and lasts for approximately 20 minutes. During stage 2 sleep, You become less aware of your surroundings.Body temperature drops. Breathing and heart rate become more regular. During stage 3 sleep: Muscles relax. Blood pressure and breathing rate drop. Deepest sleep occurs. During REM sleep: The brain becomes more active. The body becomes relaxed and immobilized. Dreams occur. Eyes move rapidly.
One reason why is because the person is scared. If you go to the police and report them, they would be in trouble and they come after you since you were the one to put them in prison.
