I stayed up too late because I was hungry
Are you up so late because you are hungry?
No, but I was full of energy after eating so became restless
You shouldn't stay up so late to the point you get hungry, it is somewhat irresponsible. Then you eat and you become restless so this turn into a never-ending cycle. This will cause physical and mental issues down the road and will be difficult to fix.
Maybe, but that doesn't matter to me.
Maybe not now, but taking care of your health now can preven tlong term consequences that can hurt you down the road.