When I was a teenager, I used to get these tremendous erections when I was lying in bed at night. I would try to ignore them but they wouldn't go away. The only way to get rid of my boner and get to sleep was to masturbate, which I ended up doing practically every night. Needless to say, I wasn't getting laid at the time. At first I felt guilty about masturbating (thanks mom!) especially since I started doing it not just at night but several times during the day as well. Eventually, I learned to enjoy masturbating for the pure pleasure of it and still do it once or twice every single day, even though I'm in a relationship and getting plenty of regular sex.