Alternative Titles Synonyms: Sleeping in Devil's Castle Japanese: 魔王城でおやすみ Information Type: TV Episodes: 12 Status: Finished Airing Aired: Oct 6, 2020 to Dec 22, 2020 Premiered: Fall 2020 Broadcast: Tuesdays at 02:00 (JST) Licensors: Funimation Studios: Doga Kobo Source: Manga Theme: Mythology Demographic: Shounen Duration: 23 min. per ep. Rating: PG-13 - Teens 13 or older Statistics Score: 7.981 (scored by 99,698 users) 1 indicates a . Ranked: #6762 2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded. Popularity: #1132 Members: 215,610 Favorites: 2,299 Available AtResources | Music VideosOP 1 (Anime ver.) play "Kaimin! Anmin! Suya Rhyst Seikatsu (快眠!安眠!スヤリスト生活)" by Aurora Suya Rhys Kaymin (Inori Minase) ED 1 (Anime ver.) play "Gimmme!" by ORESAMA Trailers |