Vonnegut also creates a curious distinction between true time travel and dreams. He tells us that “Billy was unconscious for two days after that, and he dreamed millions of things, some of them true. The true things were time-travel.” This last sentence suggests an interpretation of Billy’s spastic tripping through time that saves him from a verdict of insanity. Instead, we can understand his time travel as dreams about his real life. Billy, like most people, has some dreams that are like memories of real-life events and some that are fantastical fabrications. Time travel may just be a label for the dreams about real-life events to suggest how powerful these dreams are. If we take this interpretation to its logical conclusion, most of Slaughterhouse-Five would qualify as one big dream in Billy’s head. Of course, we may still believe that Billy has a sleep disorder if he can drift off into dreams while standing up in the forest, standing behind his optometer at work, speaking to the Lions Club, or visiting the bathroom after making love to his wife on their wedding night. Over the course of the novel, we actually encounter very few dreams that would not qualify as time travel. These include the time that Billy dreams he is a giraffe and the occasion on which he daydreams about doing tricks for a crowd by sliding around on a smooth floor in gym socks.