[Armin is pulling up a separate screen to do a quick Pokedex search on Drowzees as they speak. And once more he wishes the Pokedex was a bit more extensive. If he was in a proper library, he could pull down some books on them and get a more detailed background, but now he only has a few lines.]

Well, the Pokedex does say that Drowzees are known to eat people's dreams, but it also says they normally get sick from bad dreams. That seems at odds with the nightmares we've been having.