Jerry and his little French mouse friend are raiding while the king sleeps. They awaken him and he calls for Tom to give him an ultimatum: One more sound from the mice and it's off with Tom's head. The mice hear this and team up to torment Tom.
Unfortunately the movie Royal Cat Nap is not yet available on HBO Max.
| Visual Effects | Kenneth Muse | Animation |
| Visual Effects | Carlo Vinci | Animation |
| Directing | Joseph Barbera | Director |
| Directing | William Hanna | Director |
| Production | Joseph Barbera | Producer |
| Art | Robert Gentle | Background Designer |
| Sound | Scott Bradley | Original Music Composer |
| Visual Effects | Lewis Marshall | Animation |
| Directing | Richard Bickenbach | Layout |
| Production | William Hanna | Producer |
