It's not that we can't sleep when we were winning, but actually, we really don't want to sleep or take a break and rest, since why should we consider doing that in the middle of our winning momentum? 
We will try to last long when luck is currently taking place.
But seriously speaking, if that winning gambler or a person that just come from winning in gambling previously or recently, can't sleep literally even if they badly want to, then that's a serious health issue.
Seriously, the joy in winning in gambling can’t allow you to sleep especially if it is not yet over, you will always be thinking about the other games that needs to be played before you finally get the money complete, at that moment of waiting for other games, you can’t sleep because you might be thinking of cashing out before the complete game. We will try to last long when luck is currently taking place. But seriously speaking, if that winning gambler or a person that just come from winning in gambling previously or recently, can't sleep literally even if they badly want to, then that's a serious health issue.
I prefer spit betting over any other gambling because that’s what I understand and know how to play well, if I bet on any other games apart from football, it will defiantly be a signal or a game someone arranged for me to bet, if not I can’t come up with convincing game that I will be sure will play.
Overexcitement for Gamblers is normal and mostly common as a result of anxiety and the achievements for winning the game.I mean gamblers should able to sleep because the game are yielding wins other than losses.The winning level in gambling is not supposed to encounter any kind of desperacy and tension,Its mission accomplished,so stay relaxed and wait for the next win.
Most times, if there are other games to be played or playing that night that are yet to be confirmed, the anxiety will not allow you to sleep because you will be thinking of other games, and you can only be certified if they are both played.