Not only men, but also little boys are hard when they fall asleep. The most standard time is from 3 am to 5 am (called morning rush hour). Hard time is when they are asleep, but they are soft when they wake up (adults will continue to be hard when they move their minds, but they can understand the difference between hard and sleep). You can observe it when you have a chance. The reason is that the body is nourishing the kidney, so it has nothing to do with dreaming (because the little boy has no "girl"). . . . "Thought), but this kind of erection will make men have sexual dreams, and sometimes there will be wet dream. Please pay attention to the order I said, not that dreams cause erections, but that erections cause dreams.