Sleepy Princess in the Demon Castle

The BEST episodes of Sleepy Princess in the Demon Castle

Every episode ever - ranked by fan votes!

A princess is kidnapped by a demon king and held prisoner in his castle. But the princess just wants to spend her time either sleeping or causing trouble for the demons.

Last Updated: 3/30/2022Network: TV Tokyo
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Sleeping Princess of the Demon Castle
star
8.52
29 votes

#1 - 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.

Watch Now:Amazon
The Princess in Endopolis
star
8.40
25 votes

#2 - 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.

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The Princess and Hostage Training Week
star
8.29
28 votes

#3 - 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.

Watch Now:Amazon
The Princess and Troubling Dreams
star
8.26
27 votes

#4 - 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.

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Even More Sleepless Princess of the Castle
star
8.17
29 votes

#5 - 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?

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The Princess and the Frightful Demon Nightmare
star
8.07
28 votes

#6 - 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.

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The Princess’ Unwavering Choice
star
8.00
26 votes

#7 - 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.

Watch Now:Amazon
The Princess and Female Warriors
star
7.87
30 votes

#8 - 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.

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The Princess, Destruction, and a Short Journey
star
7.76
34 votes

#9 - 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.

Watch Now:Amazon
Sleepless Princess of the Castle
star
7.66
53 votes

#10 - 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.

Directors: Mitsue Yamazaki
Watch Now:Amazon
The Princess and Forbidden Knowledge
star
7.56
39 votes

#11 - 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.

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The Princess and Furious Fluff
star
7.49
41 votes

#12 - 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.

Watch Now:Amazon