It really shouldn't be a problem. I'm well used to it. But do get tired next day. However, I found something interesting tonight. Problem with not being able to fall a sleep leads to being hungry. And once I part take in middle of the night snack, it will keep me awake further until I get hungry again. It becomes a vicious cycle of hunger and insomnia. Too late to get some stuff drink to knock myself out. Might as well skip the sleep.