At the beginning of one scene, Rudy begs her father, Cliff, to be funny for her friend at her sleepover. However, Cliff tells Rudy, "I'm not a professional comedian." Bill Cosby had been a real-life stand-up comedian since 1961.
The title refers to students cramming for a test the next day or any activity (work, games, television) that replaces the normal sleep cycle, which takes all night.