Serious question here- I do it all the time when i need to piss but i don't think i've ever woken in the middle of the night for a numero deux. Maybe i have if i've had a dicky tum tum or eaten something nasty, but otherwise never. There just seems to be a point in the night after which it feels a bit weird pooing. I reckon it's around 11.30pm. Yep, that's the cut off. Anyone caught pooing after this time is a weirdo.