Overview
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.
Seasons & Episodes
Season 1
A drowsy human princess roams the demon's castle where she's held prisoner, trying to find a comfortable place to get a good night's sleep.
Key Information
Watch Trailer
Cast & Crew
Sayaka Ohara
Neo Alraune (voice)
Inori Minase
Princess Syalis (voice)
Kaito Ishikawa
Demon Cleric (voice)
Yoshitsugu Matsuoka
Demon King Tasogare (voice)
Hiro Shimono
The Hero Akatsuki (voice)
Rikiya Koyama
Majiro the Hedgehog (voice)
Kouichi Souma
Frankenzombie (voice) / Ghost Wrapping Paper (voice)
Junichi Suwabe
Caesar Magician (voice)
Shinya Takahashi
Goblin Serf (voice)
Chikahiro Kobayashi
Red Siberian (voice)
Ayane Sakura
Aladdif (voice)
Takeo Otsuka
Poseidon (voice)
Photos
Frequently Asked Questions
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...
Sleepy Princess in the Demon Castle has 1 season with 12 episodes.
Sleepy Princess in the Demon Castle premiered on October 6, 2020.
No, Sleepy Princess in the Demon Castle has ended. The final episode aired on December 22, 2020.
Sleepy Princess in the Demon Castle originally aired on TV Tokyo. Check your local streaming services for availability.
Sleepy Princess in the Demon Castle has a rating of 8.4/10 based on user reviews.
Sleepy Princess in the Demon Castle is classified as Animation, Comedy, Sci-Fi & Fantasy.