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Anime series

Sleepy Princess in the Demon Castle

Latest episode

S1 E12 · Sleeping Princess of the Demon Castle

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About Sleepy Princess in the Demon Castle

Sleepy Princess in the Demon Castle is a comedy and sci-fi & fantasy anime series that premiered on TV Tokyo on October 6, 2020. It has 1 season and 12 episodes so far and has ended. The latest episode, Season 1 Episode 12 "Sleeping Princess of the Demon Castle", aired on December 22, 2020.

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.

  • Comedy
  • Sci-Fi & Fantasy
  • Animation

Last updated

Episodes

12 episodes · 1 season

Season 1

2020 · 12 episodes · Last episode: 5 years ago

A drowsy human princess roams the demon's castle where she's held prisoner, trying to find a comfortable place to get a good night's sleep.

Sleepy Princess in the Demon Castle Season 1 release dates →
  1. Sleepy Princess in the Demon Castle S1 E12 still E12

    12. Sleeping Princess of the Demon Castle

    Finale

    Despite living as a captive in the Demon Realm, the princess writes a letter to Santa. The letter’s contents shock the demon king.

  2. Sleepy Princess in the Demon Castle S1 E11 still E11

    11. The Princess and Troubling Dreams

    Princess Syalis feels tired no matter how much sleep she gets, and her troubling dreams aren’t helping.

  3. Sleepy Princess in the Demon Castle S1 E10 still E10

    10. The Princess in Endopolis

    Princes Syalis is determined to get her hands on the latest and greatest sleep product, but it’s only available in the Human Realm.

  4. Sleepy Princess in the Demon Castle S1 E9 still E9

    9. The Princess and Hostage Training Week

    It’s time for Princess Syalis to start acting like a proper hostage, so the demon king issues a decree to help change that.

  5. Sleepy Princess in the Demon Castle S1 E8 still E8

    8. The Princess and the Frightful Demon Nightmare

    Back at the Demon Castle, Princess Syalis interrupts an important meeting to share about her haunted dreams.

  6. Sleepy Princess in the Demon Castle S1 E7 still E7

    7. Even More Sleepless Princess of the Castle

    Princess Syalis wakes to find herself in a completely different castle! What happened and how will she return to the Demon Castle?

  7. Sleepy Princess in the Demon Castle S1 E6 still E6

    6. The Princess’ Unwavering Choice

    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.

  8. Sleepy Princess in the Demon Castle S1 E5 still E5

    5. The Princess and Female Warriors

    The female unit, long deployed out in the field, has returned to the Demon Castle to get their first taste of Princess Syalis.

  9. Sleepy Princess in the Demon Castle S1 E4 still E4

    4. The Princess, Destruction, and a Short Journey

    Fed up with her circumstances at the Demon Castle, Princess Syalis goes to great lengths to add luxuries to her castle prison.

  10. Sleepy Princess in the Demon Castle S1 E3 still E3

    3. The Princess and Forbidden Knowledge

    Princess Syalis is on the loose again meddling with forbidden magical items and causing total mayhem for the Demon Castle.

  11. Sleepy Princess in the Demon Castle S1 E2 still E2

    2. The Princess and Furious Fluff

    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.

  12. Sleepy Princess in the Demon Castle S1 E1 still E1

    1. Sleepless Princess of the Castle

    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.

Sleepy Princess in the Demon Castle FAQ

Will there be new episodes of Sleepy Princess in the Demon Castle?

Sleepy Princess in the Demon Castle has ended, so no new episodes are scheduled. The final episode aired on December 22, 2020.

When did the latest episode of Sleepy Princess in the Demon Castle come out?

The most recent episode of Sleepy Princess in the Demon Castle, Season 1 Episode 12 "Sleeping Princess of the Demon Castle", aired on December 22, 2020.

How many seasons of Sleepy Princess in the Demon Castle are there?

Sleepy Princess in the Demon Castle has 1 season with 12 episodes in total.

When did Sleepy Princess in the Demon Castle first air?

Sleepy Princess in the Demon Castle first aired on TV Tokyo on October 6, 2020.

How do I get notified when new episodes of Sleepy Princess in the Demon Castle are released?

Download the Streambay app, follow Sleepy Princess in the Demon Castle, and you'll get a push notification the moment each new episode is released.

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