And now for my thoughts of the latest episode (be warned, spoilers)

In contrast to the previous episodes of the season, this is one of the 2 episodes not to be a 2-parter (with next weeks episode also not being a 2-parter), but despite this, the episode still ends with a bit of a cliffhanger. What were those sandmen? Will we ever see them again? What is up with the twist ending and what do you mean this wasn't real?
I am a little bit confused as to what the monsters are, but hopefully we'll learn latter in the series.