No Rest, Too Wicked

I'd like the title to be more true than it really is; I've not been wicked, nor even just a smidgen ornery. I've been in bed, mostly; resting, resting and of course, resting. So can anyone explain how I woke up from several hours' sleep with a busted ankle?
No?
Me neither, but I wish I'd been there for it, must have been a good time.