Sleepy Princess in the Demon Castle
When young Princess Syalis is kidnapped and imprisoned by the Demon King, she's rather indifferent about her situation. But she quickly comes to a terrible realisation—she can't sleep soundly in such an uncomfortable bed! She soon escapes her cell and sets off in search of ways to improve her sleep quality, leaving the castle's inhabitants, and even the Demon King himself, scrambling to keep the unruly princess out of trouble during her chaotic adventures.
Where to watch Sleepy Princess in the Demon Castle in United States
Crunchyroll
Crunchyroll Amazon Channel
Amazon Video
Apple TV StoreClick a service to open Sleepy Princess in the Demon Castle there. Availability last verified on June 20, 2026.
Where is Sleepy Princess in the Demon Castle streaming around the world?
| Country | Streaming on | Rent / Buy |
|---|---|---|
| United States | Crunchyroll, Crunchyroll Amazon Channel | Amazon Video, Apple TV Store |
| United Kingdom | Crunchyroll, Crunchyroll Amazon Channel | Apple TV Store, Amazon Video |
| Canada | Crunchyroll Amazon Channel, Crunchyroll | Apple TV Store |
| Australia | Crunchyroll, Crunchyroll Amazon Channel | Apple TV Store |
| Germany | Crunchyroll, Crunchyroll Amazon Channel | — |
| France | Crunchyroll, Crunchyroll Amazon Channel | — |
| Spain | Crunchyroll, Crunchyroll Amazon Channel | — |
| Brazil | Crunchyroll, Crunchyroll Amazon Channel | — |
| Japan | Hulu, Anime Times Amazon Channel, FOD, Amazon Prime Video | Amazon Video |
| South Korea | Netflix, Watcha, Netflix Standard with Ads, TVING | — |
About Sleepy Princess in the Demon Castle
Sleepy Princess in the Demon Castle is a 2020 Japanese-language animation, comedy and sci-fi & fantasy series. The cast is led by Inori Minase, Kaito Ishikawa, Yoshitsugu Matsuoka. It spans 1 season and 12 episodes and has concluded. Viewers rate it 8.4/10 across 100 ratings. In United States, it is currently streaming on Crunchyroll, Crunchyroll Amazon Channel.
Sleepy Princess in the Demon Castle was produced by Doga Kobo and made in Japan. It was first aired on October 6, 2020, and carries a TV-14 certification.
- First aired
- October 6, 2020
- Last aired
- December 22, 2020
- Original language
- Japanese
- Age rating
- TV-14
- Status
- Ended
- Seasons
- 1 (12 episodes)
- Network
- TV Tokyo
- Country
- Japan
- Production
- Doga Kobo
Sleepy Princess in the Demon Castle cast & crew
The cast features Inori Minase as Princess Syalis (voice), Kaito Ishikawa as Demon Cleric (voice), Yoshitsugu Matsuoka as Demon King Tasogare (voice), Hiro Shimono as The Hero Akatsuki (voice), Rikiya Koyama as Majiro the Hedgehog (voice), and Kouichi Souma as Frankenzombie (voice) / Ghost Wrapping Paper (voice).
Behind the camera, the score was composed by Yukari Hashimoto, cinematography is by Kunihiko Ito, and it was produced by Daijiro Morita and Kaoru Wada.
Is Sleepy Princess in the Demon Castle worth watching?
Sleepy Princess in the Demon Castle holds an audience score of 8.4/10 from 132 ratings, ranking it among the most acclaimed animation series.
With 1 season and 12 episodes, it's a quick, bingeable run.
If you enjoy animation, comedy, and sci-fi & fantasy, Sleepy Princess in the Demon Castle is worth a place on your watchlist.
How and where to watch Sleepy Princess in the Demon Castle
In United States, you can stream Sleepy Princess in the Demon Castle on Crunchyroll and Crunchyroll Amazon Channel, or rent and buy it on Amazon Video and Apple TV Store. Click any service above to open it directly.
Streaming rights change country by country and month by month, so the options above reflect United States today — switch your country at the top of the where-to-watch section to see availability elsewhere.
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Cast of Sleepy Princess in the Demon Castle
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)
Sayaka Ohara
Harpy (voice)
Ayane Sakura
Aladdif (voice)
Takeo Otsuka
Poseidon (voice)
Sleepy Princess in the Demon Castle — FAQs
▸Where can I watch Sleepy Princess in the Demon Castle in United States?
Sleepy Princess in the Demon Castle is streaming on Crunchyroll, Crunchyroll Amazon Channel in United States.
▸Is Sleepy Princess in the Demon Castle on Crunchyroll?
Yes — Sleepy Princess in the Demon Castle is currently available on Crunchyroll in United States.
▸What language is Sleepy Princess in the Demon Castle in?
Sleepy Princess in the Demon Castle is originally in Japanese. Subtitle and dub options vary by streaming service.
▸How many seasons of Sleepy Princess in the Demon Castle are there?
Sleepy Princess in the Demon Castle has 1 season with 12 episodes in total.
▸What is Sleepy Princess in the Demon Castle rated?
Sleepy Princess in the Demon Castle is rated TV-14. It holds a 8.4/10 audience score from 132 ratings.
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