Question
Hey, my teacher said that when people go into a stage 4 deep sleep, that the loose their sense of feeling and awarness, does that follow through with all people or just some, because last weekend some of my frends pulled a prank and drew on this guys face while he was sleeping and i wondered why he didn't wake up when they were doing it. is that just because he is a deep sleeper or because he was in a deep sleep? just a curious question?
Answer
you usually lost your sense of feeling and awareness during rem sleep about stage 2. As far as your friend not waking up.I think he just didnt feel th pressure of the pen on his face to wake up. Usually its human nature when one is startled to wake up. I hope this helps,feel free to write again,karel
