
Sleepy Princess in the Demon Castle
魔王城でおやすみ
Channel TV Tokyo · Starring Inori Minase, Kaito Ishikawa, Yoshitsugu Matsuoka
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.
- IMDb
- 7.5/10 · 1,060 votes
- RATE IT
Where to watch
Episodes
- Episode 1: 1. Sleepless Princess of the CastleOctober 6, 2020 · 24 minPrincess Syalis is abducted from her home of the Nation of Goodereste by Twilight the Demon King. Despite the horrors lurking in the Demon Castle, all Princess Syalis wants is a good night’s sleep.
- Episode 2: 2. The Princess and Furious FluffOctober 13, 2020 · 24 minAs Dawner the Hero faces perilous obstacles to rescue Princess Syalis, the princess continues to find creative ways to sleep more comfortably at the Demon Castle.
- Episode 3: 3. The Princess and Forbidden KnowledgeOctober 20, 2020 · 24 minPrincess Syalis is on the loose again meddling with forbidden magical items and causing total mayhem for the Demon Castle.
- Episode 4: 4. The Princess, Destruction, and a Short JourneyOctober 27, 2020 · 24 minFed up with her circumstances at the Demon Castle, Princess Syalis goes to great lengths to add luxuries to her castle prison.
- Episode 5: 5. The Princess and Female WarriorsNovember 3, 2020 · 24 minThe female unit, long deployed out in the field, has returned to the Demon Castle to get their first taste of Princess Syalis.
- Episode 6: 6. The Princess’ Unwavering ChoiceNovember 10, 2020 · 24 minDawner the Hero is having more trouble than expected on his journey to the Demon Castle, so the demon higher ups decide to take some action.
Show 6 more episodes
- Episode 7: 7. Even More Sleepless Princess of the CastleNovember 17, 2020 · 24 minPrincess Syalis wakes to find herself in a completely different castle! What happened and how will she return to the Demon Castle?
- Episode 8: 8. The Princess and the Frightful Demon NightmareNovember 24, 2020 · 24 minBack at the Demon Castle, Princess Syalis interrupts an important meeting to share about her haunted dreams.
- Episode 9: 9. The Princess and Hostage Training WeekDecember 1, 2020 · 24 minIt’s time for Princess Syalis to start acting like a proper hostage, so the demon king issues a decree to help change that.
- Episode 10: 10. The Princess in EndopolisDecember 8, 2020 · 24 minPrinces Syalis is determined to get her hands on the latest and greatest sleep product, but it’s only available in the Human Realm.
- Episode 11: 11. The Princess and Troubling DreamsDecember 15, 2020 · 24 minPrincess Syalis feels tired no matter how much sleep she gets, and her troubling dreams aren’t helping.
- Episode 12: 12. Sleeping Princess of the Demon CastleDecember 22, 2020 · 24 minDespite living as a captive in the Demon Realm, the princess writes a letter to Santa. The letter’s contents shock the demon king.
Trailers and images
Credits
- Inori MinasePrincess Syalis (voice) · 12 episodes
- Kaito IshikawaDemon Cleric (voice) · 12 episodes
- Yoshitsugu MatsuokaDemon King Tasogare (voice) · 12 episodes
- Hiro ShimonoThe Hero Akatsuki (voice) · 12 episodes
- Rikiya KoyamaMajiro the Hedgehog (voice) · 12 episodes
- Kouichi SoumaFrankenzombie (voice) / Ghost Wrapping Paper (voice) · 12 episodes
- Mitsue YamasakiDirector · 3 episodes
Film and series details
- FIRST AIRED
- October 6, 2020
- LAST AIRED
- December 22, 2020
- PRODUCTION COMPANIES
- Doga Kobo, FuRyu, TV Tokyo
Similar films and series
- Miss Kobayashi's Dragon Maid
- Drop Kick on My Devil!!
- Centaur no Nayami
- The Slime Diaries
- When Supernatural Battles Became Commonplace
- The Great Jahy Will Not Be Defeated!
- Gabriel DropOut
- The Testament of Sister New Devil
- KONOSUBA - God's blessing on this wonderful world!
- Endro!
- Magic Maker: How to Make Magic in Another World
- Myriad Colors Phantom World
- I'm Giving the Disgraced Noble Lady I Rescued a Crash Course in Naughtiness
- The Saint's Magic Power Is Omnipotent
- Bungo Stray Dogs Wan!
- Senyu.
- Kore wa Zombie Desu ka
- KamiKatsu: Working for God in a Godless World
- Mieruko-chan
- スライム倒して300年、知らないうちにレベルMAXになってました
- ボスコアドベンチャー
- W.I.T.C.H.
- Slovania
- ลิขิตรักข้ามดวงดาว
- GREAT PRETENDER
- スタンドマイヒーローズ PIECE OF TRUTH
- ACTORS -Songs Connection-
- ぼくのとなりに暗黒破壊神がいます。
- ファンタシースターオンライン2 エピソード・オラクル
- 祝福のカンパネラ
- iiiあいすくりん
- exception
- 社畜さんは幼女幽霊に癒されたい。
- アーケードゲーマーふぶき
- 英國戀物語エマ
- 原神
- 極上生徒会
- バトルスピリッツ 覇王
- OBSOLETE
- Seis Manos

























































