Sleepy Princess in the Demon Castle

Sleepy Princess in the Demon Castle

MyAnimeList - 8.01
Anilist - 7.8
Kitsu - 8.04


Average Rating

Sshhh! Princess Syalis is trying to get a good night's sleep. Some shut-eye. Forty winks. Catch some Z's. Long ago in olden times when people and demons lived together in—well, disharmony, really—a demon king kidnaps a human princess and imprisons her in his castle. Bereft, the princess's subjects beat their chests in anguish...until a hero arises to spearhead Project Rescue Our Princess! While waiting for her knight in shining armor, what's an imprisoned princess to do...? Teddy-bear guards with bat wings are all very well, but her dungeon cell is bo-o-o-ring! So, she decides to wile away the long hours by sleeping. Now if only she could get comfortable...and didn't suffer from insomnia... (Source: VIZ Media)

User Rating: Be the first one !


English: Sleepy Princess in the Demon Castle
Japanese: 魔王城でおやすみ
Synonyms: Sleeping in Devil’s Castle
Type: TV
Episodes: 12
Status: Finished Airing
Aired: Oct 6, 2020 to Dec 22, 2020
Premiered: Fall 2020
Broadcast: Tuesdays at 02:00 (JST)
Producers: Lantis
Licensors: Funimation
Studios: Doga Kobo
Source: Manga
Genres: Fantasy, Comedy
Duration: 23 min per ep
Rating: PG-13 – Teens 13 or older
Resolution: 480p, 720p, 1080p
Type: Eng Sub


Mitsue Yamazaki – Director
Yukari Hashimoto – Music
Kei Ishiguro – Color Design
Kunihiko Itou – Director of Photography
More >>

Theme Songs

OP1: “Kaimin! Anmin! Suya Rhyst Seikatsu (快眠!安眠!スヤリスト生活)” by Aurora Suya Rhys Kaymin (Inori Minase)
ED1: “Gimmme!” by ORESAMA

Arthur Lee

Maoujou means demon castle, also can be demon princess (same pronounciation)


Wanting to have a good night’s sleep can be a frightening force


Hime sleeps peacefully in her coffin? Well, her troubles seem to be over, try to not be too jealous.


    Loli Killer

    Nep Nep