You're all familiar with the "Ideal Gas Law" (gasses expand to fill the available volume). After sleeping with Michael at my parents' house, I have a corollary -- the "Ideal Michael Law" -- Michael expands to fill the available bed space. I don't know how a little three year-old can take up a whole queen sized bed, but he does.
There is also something magical about his feet; no matter where I position him and where I sleep, his feet always wind up pointed at my face (or other sensitive parts.) It's like a pain compass.
Plus, he snores like a little pig. It's a good thing he's cute and the return policy wasn't very liberal.