I have seen one interview of a former gambler and what he is saying caught my attention. He says that "when you're winning you can't sleep". I'm not sure if others have experience it or if this make sense. In any case though, one explanation is that we are really in a heightened alert, meaning it's like gambling is like a drugs that keeps up alive and awake and then the human emotions of greed takes in as we want to win for.
I don't let the games decide my emotions. I can sleep when I'm winning or losing. I don't make it look like I have to rely on gambling for me to make money hence it doesn't matter what's happening to me, I'll do what I have in mind to do. Why people can't sleep when winning is because they want to continue gambling because they think that they can win hence they don't want sleep to deprive them of winning more. This is how we get gambling addicts hence when I'm winning and I get the urge to keep gambling, I don't always follow that thought but will stop gambling instantly. The same thing happens when I'm losing and that's when I pay more attention because I don't want to be losing that money that can cause me to be troubled.