The BEST episodes written by Bill Marsilli

#1 - The Demon in the Mattress

Courage the Cowardly Dog - Season 1 - Episode 7

Muriel orders a new mattress and when she lays on it, a demon inside the mattress enters her body and takes over. Courage gets rid of the demon by finding a chant on The Computer. It exits Muriel's body and the mattress is sent back.