When a child comes to school and is irritable, not...

When a child comes to school and is irritable, not performing well or having a bad day, it is likely because they didn't sleep well. Some kids are kind of misunderstood in behavior problems because they are sleep-deprived. Whatever is keeping them up, they don't get enough rest, and you can see it the next day in their behavior. They are lethargic and not involved.