he finds a long passageway lit by chandelier

Bingo was no stranger to sleepwalking. Heck, sometimes he found himself stumbling about in a stupor during the middle of the day! Which was basically the same as the middle of the night, considering the nonlinear web of time. It really came in useful when he was late to something - in the other direction, he was just really, really early!

But it was definitely late now, he reasoned (disregarding the fact that he'd managed to fall all the way up the stairs and sustain only minimal bruising at the knees), since there was Mario, completely lucid, rummaging through the fridge.