Markolepsy

A condition whereby the sufferer falls asleep at will but is unable to re-engage brain quickly. The ability to sleep in any position or situation for a staggering amount of time. Often people with this condition will appear to be awake until you need to elicit some kind of response from them when you realise that they have been asleep the whole time with their eyes open.

Hey is that dude dead in that chair over there?

Nah, he just suffers from Markolepsy.......

Can you believe I just told that dude my whole life story and he just stared at me?!

Ah he's not ingoreing you, he suffers from Markolepsy....