For as long as I can remember I had trouble staying quiet at night, I screamed, I swore, and I shouted. I also sleepwalked, often aimlessly before I realised what I was doing. Sometimes I even physically tried to ward off enemies, punch them and/or take cover.
Whenever that happened my heart was pounding, I was genuinely scared, and took several minutes before my mind was able to collect itself and realise how preposterous it would be that an assassin is out to kill me. For a while I considered that I had post traumatic stress disorder.
This went on for many years. However, I was calm and collected when I was awake. Perhaps I had anger issues that I suppressed?
In anycase that suddenly changed when I began writing and I believe I know why. People like us who always think, always dream, play out scenarios in our heads daily (some violent and some not so much); these thoughts gets stored in our subconsciousness and when we sleep they sprout out and grabs a hold of us!
I believe that that is why some people have restless nights. But when we begin to write those thoughts down, we receive an outlet. Think about it, when we write down our ideas on paper we can basically throw that idea out of our mind because it is stored somewhere other than in our head. Thus, our brains only has to format the mundane events that happens during everyday life, and presto! the nights are calm again.