Sleepy princess in the Demon Castle. 5

Kidnapped by the Demon King and imprisoned in his castle, Princess Syalis is ... bored. Princess Syalis comes to the surprising conclusion that being good will earn her a good night's sleep! But none of the demons trust her sudden transformation. The princess's latest dilemmas include a growing urge to use the bathroom when it's out of order, her pet Eggplant Seal outgrowing her quarters, and growing into a giant instead of up. And then it's time...