The Adventures of Jimmy Neutron Boy Genius Season 1 Episode 13 Maximum Hugh /Sleepless in Retroville >Jimmy invents a new sleep-over machine when Carl and Sheen come over for the night. Things take a scary twist, however, when Carl accidentally creates a pizza monster from tampering with the machine, and the three end up being chased, but are able to stop him with light. The pizza monster then wakes up and discovers that the whole event was a nightmare while he was sleeping.