Sleep no more was a return to last season's quality. Which is very much a bad thing. I thought last season was mostly garbage with a few gems and this was the first episode this season I didn't like. (Well part two of the ghost storyline, I'm sort of neutral on, part one was great though). I mean seriously. Eye booger monsters? No real explanation as to why. So if I pull enough all nighters will I be eaten by my eye boogers? Far from sleeping no more it was a snoozefest. tldr; The Doctor summed it up best: "None of this makes any sense."