Man One night when I was really tired. I got home from work or school. Then I went to bed at 10:00 p.m. Then sometimes I found myself having sperm around my underwear. I woke up in the middle of the night and it was nearly half dried up. I'm not really sure if it was a sleeping masturbation or just wet my pants. Also one time when I was looking at porn then the next time it has happen.