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**Synopsis**

A captured princess just wants a good night’s sleep!
Imprisoned in the castle of the Demon King, all spoiled-sweet Princess Syalis dreams of is a good night’s sleep! Shhh...
Kidnapped by the Demon King and imprisoned in his castle, Princess Syalis is...bored.
She decides to while away the hours by sleeping, but getting a good night’s rest turns out to be a lot of work! She begins by fashioning a DIY pillow out of the fur of her Teddy Demon guards and an “air mattress” from the magical Shield of the Wind. The princess’s hapless demonic guards soon discover that their captive expects to be treated like, well, a princess. Things go from bad to worse—for her captors—when some of Princess Syalis’s schemes end in her untimely—if temporary—demise and she chooses the Forbidden Grimoire for her bedtime reading...
Source: VIZ Media

Wiki Content

*Sleepy Princess in the Demon Castle* is a currently running series.

Wiki: Rules • Admins
Series: Manga • Anime • Characters

Manga Releases
Volume 1Volume 2Volume 3Volume 4Volume 5Volume 6Volume 7Volume 8Volume 9Volume 10Volume 11Volume 12
Explore the Demon Lord's Castle!
* Characters

Featured Video

Latest Releases

* Manga

* English
* Japanese

**Volume 12** | **June 9, 2020**

**Next: TBA**

**Volume 12** | **September 18, 2019**

**Next: TBA**

Helping Out

Affiliates

TV Anime
* *7th Time Loop: The Villainess Enjoys a Carefree Life Married to Her Worst Enemy!*
* *Akuyaku Reijou Level 99: Watashi wa Ura-Boss desu ga Maou dewa Arimasen*
* *Ao no Exorcist: Shimane Illuminati-hen*
* *Banished from the Hero's Party, I Decided to Live a Quiet Life in the Countryside Season 2*
* *Boku no Kokoro no Yabai Yatsu*
* *Bottom-Tier Character Tomozaki Season 2*
* *Cardfight!! Vanguard: Divinez*
* *Cherry Magic! Thirty Years of Virginity Can Make You a Wizard?!*
* *Chou Futsuu Ken Chiba Densetsu*
* *Classroom of the Elite III*
* *Delicious in Dungeon*
* *High Card Season 2*
* *Hokkaido Gals Are Super Adorable!*
* *Ishura*
* *Kingdom 5th Season*
* *Mahou Shoujo ni Akogarete*
* *Mashle Season 2*
* *Metallic Rouge*
* *Mato Seihei no Slave*
* *Momochi-san Chi no Ayakashi Ouji*
* *My Instant Death Ability Is So Overpowered*
* *Sengoku Youko*
* *Shaman Kings: Flowers*
* *Solo Leveling*
* *Synduality: Noir Part 2*
* *Tales of Wedding Rings*
* *The Fire Hunter Season 2*
* *The Foolish Angel Dances with the Devil*
* *The Unwanted Immortal Adventurer*
* *The Weakest Tamer Began a Journey to Pick Up Trash*
* *Tsuki ga Michibiku Isekai Douchuu Season 2*
* *Urusei Yatsura Season 2*
* *Witch and the Beast*
* *Yubisaki to Renren*

TV (Multiseason)
* *Captain Tsubasa Season 2: Junior Youth-hen*
* *Frieren: Beyond Journey's End*
* *Hirogaru Sky! Precure*
* *Ragna Crimson*
* *Shadowverse Flame: Seven Shadows-hen*
* *Shangri-La Frontier*
* *The Apothecary Diaries*
* *Yu-Gi-Oh! Go Rush!!*

ONA
* *Ensemble Stars!! Tsuioku Selection Checkmate*
* *Great Pretender: Razbliuto*
* *Monsters: 103 Mercies Dragon Damnation*

OVA
* *My Happy Marriage: Watashi no Shiawase na Katachi*

Specials
* *Classroom for Heroes Specials*

Film
* *Dead Dead Demons Dededede Destruction*
* *Haikyuu!! Movie: Gomisuteba no Kessen*
* *Kizumonogatari: Koyomi Vamp*
* *Mobile Suit Gundam SEED Freedom*
* *Oomuro-ke*

*[Edit this list]*

Noragami
My Dress-Up Darling
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Sleepy Princess in the Demon Castle [ˈslipi ˈprɪnsɛs ɪn ðə ˈdimən ˈkæsəl] (魔王城でおやすみ, Maou-jou de Oyasumi/ Maoujou de Oyasumi)