Don't forget, we can make them too.

http://xivdb.com/?search=sleeping+po...lters=cGFnZT0x

We never really looked at the guy closely, and with all that's going on in the Saucer, do you think we really can tell the difference between deep sleep and death?

EDIT: He was also asleep for what...an hour or two? And didn't need an antidote to wake. So I'll put my money on a potent sleeping potion.