Why dont adults roll out of bed?

Answer 1

It happens, especially when the adult is really drunk ;)

I just think our subconscious mind is still paying attention to the feeling of our surroudings even while we're sleeping so if we start to feel the edge of the bed, we automaticly adjust our bodies to be sure not to fall off.

Kids just lack experience so they don;t know how to predict that they will fall yet, so they can't catch themselves beforehand. That's why as the child gets older they tend not to fall out of bed so much..... experience.

Answer 2

they are not as wild as kids.