Sleepy Princess in the Demon Castle

Name: Sleepy Princess in the Demon Castle
Genre: Fantasy, Animation, Comedy
Released: 2020-01-01
Rating: 6.7
Cast: Sayaka Ohara, Inori Minase, Kaito Ishikawa, Yoshitsugu Matsuoka, Hiro Shimono

魔王城でおやすみ

2020| 1 season| IMDb 6.7

Sleepy Princess in the Demon Castle (2020) is currently available in the UK on Crunchyroll. Last updated 20 January 2026.

Streaming availability last checked 20 January 2026

Fantasy Animation Comedy

Syalis is a princess. A really cute one. When she gets kidnapped by the Demon King as a hostage, she’s stuck in a castle full of demons, waiting to be rescued by her knight in shining armor. So what does she do? What any of us would. Take a nap—on a pillow she fashioned from her Teddy Demon guards. Duh.