I have "lost" a lens under my eyelid at the very back of my a few times over the years. A little rubbing the the right direction brings it back down.
As far as sleeping in contacts goes, I can and have often slept hours in them. I try not to make a habit out of it, though.
As far as sleeping in contacts goes, I can and have often slept hours in them. I try not to make a habit out of it, though.