Well, if sleep is an addiction, it doesn't look like one I'll be giving up any time soon. I doubt anyone else will, either.
I honestly don't believe sleep is an addiction. It's more of a living being's regenerative cycle. We'd run out of energy if we were up and about 24/7. If we didn't sleep, I can guarantee we'd all go insane and die, or kill one another in a psychotic rage. Doesn't that sound like fun?