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Animation•Comedy•Sci-Fi & Fantasy

All Episodes of Sleepy Princess in the Demon Castle

Browse all episodes of Sleepy Princess in the Demon Castle

Binge this in 4h 48m•Peaking at 8.4/10

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

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Season 1

7.5/1079 votes
Sleepless Princess of the Castle
Season 1 Episode 1 - Aired 10/6/2020
Princess 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.
Director: Mitsue Yamasaki
Writer: Yoshiko Nakamura
7.6/1067 votes
The Princess and Furious Fluff
Season 1 Episode 2 - Aired 10/13/2020
As 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.
Director: Sumie Noro
Writer: Yoshiko Nakamura
7.7/1064 votes
The Princess and Forbidden Knowledge
Season 1 Episode 3 - Aired 10/20/2020
Princess Syalis is on the loose again meddling with forbidden magical items and causing total mayhem for the Demon Castle.
Director: Unknown
Writer: Yoshiko Nakamura
7.7/1062 votes
The Princess, Destruction, and a Short Journey
Season 1 Episode 4 - Aired 10/27/2020
Fed up with her circumstances at the Demon Castle, Princess Syalis goes to great lengths to add luxuries to her castle prison.
Director: Geisei Morita
Writer: Michihiro Tsuchiya
7.7/1060 votes
The Princess and Female Warriors
Season 1 Episode 5 - Aired 11/3/2020
The female unit, long deployed out in the field, has returned to the Demon Castle to get their first taste of Princess Syalis.
Director: Sumie Noro, Takaharu Ookuma
Writer: Yoshiko Nakamura
8.0/1061 votes
The Princess’ Unwavering Choice
Season 1 Episode 6 - Aired 11/10/2020
Dawner 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.
Director: Tatsuya Nokimori
Writer: Michihiro Tsuchiya
8.4/1068 votes
Even More Sleepless Princess of the Castle
Season 1 Episode 7 - Aired 11/17/2020
Princess Syalis wakes to find herself in a completely different castle! What happened and how will she return to the Demon Castle?
Director: Yoshiyuki Shirahata, Mitsue Yamasaki, Sumie Noro
Writer: Yoshiko Nakamura
7.9/1058 votes
The Princess and the Frightful Demon Nightmare
Season 1 Episode 8 - Aired 11/24/2020
Back at the Demon Castle, Princess Syalis interrupts an important meeting to share about her haunted dreams.
Director: Geisei Morita
Writer: Michihiro Tsuchiya
8.3/1066 votes
The Princess and Hostage Training Week
Season 1 Episode 9 - Aired 12/1/2020
It’s time for Princess Syalis to start acting like a proper hostage, so the demon king issues a decree to help change that.
Director: Hitomi Ezoe
Writer: Michihiro Tsuchiya
8.0/1057 votes
The Princess in Endopolis
Season 1 Episode 10 - Aired 12/8/2020
Princes Syalis is determined to get her hands on the latest and greatest sleep product, but it’s only available in the Human Realm.
Director: Tatsuya Nokimori
Writer: Yoshiko Nakamura
7.8/1060 votes
The Princess and Troubling Dreams
Season 1 Episode 11 - Aired 12/15/2020
Princess Syalis feels tired no matter how much sleep she gets, and her troubling dreams aren’t helping.
Director: Yasufumi Soejima
Writer: Michihiro Tsuchiya
8.2/1059 votes
Sleeping Princess of the Demon Castle
Season 1 Episode 12 - Aired 12/22/2020
Despite living as a captive in the Demon Realm, the princess writes a letter to Santa. The letter’s contents shock the demon king.
Director: Mitsue Yamasaki, Sumie Noro
Writer: Yoshiko Nakamura