Tired but not sleepy

Do you know the feeling? When you stay awake for a long enough time, you become so tired that you cannot get to sleep. I know it sounds crazy, but that's how it goes. I'm in that state at the moment. I've been up way too long and when I tried to go to sleep a moment ago, I sleep just would not come. This character from a children's tv show used to be a sure sign that it was time to go to bed when I was a kid. Maybe seeing mr. Sandman will make me sleepy:



Good night and sweet dreams to everyone who might be reading this.