You were tired as Hell, to put it lightly. You stayed up an entire night until 4am, and not to mention, you had to fight a bunch of ink monsters, escape the Ink Demon, via going back to Boris into the lift, and waiting an HOUR since the Ink Demon wouldn't leave.

After it did, you left the lift. But before you could take another step, you collapsed face first into an ink puddle (which pissed the Ink Demon off, again), and passed out.