Dorothy is teaching Queen Ozma and friends about slumber parties! But Wilhelmina is mad that she's been left out of the fun and tries to ruin the slumber party by creating a giant Pillow Monster. But not only does the Pillow Monster attack the party, he escapes the Emerald Palace and rampages toward Wilhelmina's castle! With some help from the Patchwork Girl, they unstitch the Pillow Man and save Oz.