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Originally Posted by EyeInTheSky i don't think i've ever had one waking up, at least not uncontrollably the way i am percieving this. i hope there is not something wrong with me. |
Dude, there's nothing wrong; if it's working during the day, don't worry about lack of morning erections. Night-time erections are caused by stimulation of your parasympathetic nervous system during a portion of sleep known as rapid-eye-movement (REM) sleep, during which dreams also occur. If you happen to wake up at around this phase of sleep, you may wake up with an erection. If you wake up during a different phase, you probably won't have an erection.