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Episodes
Season 1 · Season 1
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.
Not watched yet
24m
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.
Not watched yet
24m
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.
Not watched yet
24m
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.
Not watched yet
24m
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.
Not watched yet
24m
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.
Not watched yet
24m
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?
Not watched yet
24m
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.
Not watched yet
24m
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.
Not watched yet
24m
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.
Not watched yet
24m
11
▶
The Princess and Troubling Dreams
Princess Syalis feels tired no matter how much sleep she gets, and her troubling dreams aren’t helping.
Not watched yet
24m
12
▶
Sleeping Princess of the Demon Castle
Despite living as a captive in the Demon Realm, the princess writes a letter to Santa. The letter’s contents shock the demon king.
Not watched yet
24m
▶
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.
Not watched yet
24m
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.
Not watched yet
24m
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.
Not watched yet
24m
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.
Not watched yet
24m
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.
Not watched yet
24m
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.
Not watched yet
24m
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?
Not watched yet
24m
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.
Not watched yet
24m
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.
Not watched yet
24m
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.
Not watched yet
24m
11
▶
The Princess and Troubling Dreams
Princess Syalis feels tired no matter how much sleep she gets, and her troubling dreams aren’t helping.
Not watched yet
24m
12
▶
Sleeping Princess of the Demon Castle
Despite living as a captive in the Demon Realm, the princess writes a letter to Santa. The letter’s contents shock the demon king.
Not watched yet
24m
Cast
Inori MinasePrincess Syalis (voice)
Kaito IshikawaDemon Cleric (voice)
Yoshitsugu MatsuokaDemon King Tasogare (voice)
Hiro ShimonoThe Hero Akatsuki (voice)
Rikiya KoyamaMajiro the Hedgehog (voice)
Kouichi SoumaFrankenzombie (voice) / Ghost Wrapping Paper (voice)
Junichi SuwabeCaesar Magician (voice)
Shinya TakahashiGoblin Serf (voice)
Chikahiro KobayashiRed Siberian (voice)
Sayaka OharaHarpy (voice)
Ayane SakuraAladdif (voice)
Takeo OtsukaPoseidon (voice)Because you watched Sleepy Princess in the Demon Castle
★ 8.3Miss Kobayashi's Dragon Maid
★ 8The Slime Diaries
★ 7Drop Kick on My Devil!!
★ 7.9The Testament of Sister New Devil
★ 6.4Gabriel DropOut
★ 8.5KONOSUBA - God's blessing on this wonderful world!
★ 6.7A Centaur's Life
★ 6When Supernatural Battles Became Commonplace
★ 7.2Bungo Stray Dogs Wan!
★ 7.8The Saint's Magic Power Is Omnipotent
★ 7The Great Jahy Will Not Be Defeated!
★ 7.3My Unique Skill Makes Me OP Even at Level 1
★ 7.6Myriad Colors Phantom World
★ 7.8The Duke of Death and His Maid
★ 7.2Vermeil in Gold
★ 6.3NARUTO Spin-Off: Rock Lee & His Ninja Pals
★ 7.6Maoyu: Archenemy & Hero
★ 7.8I've Been Killing Slimes for 300 Years and Maxed Out My Level