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Sleepy Princess in the Demon Castle

104 chapters | Ongoing | Rank 364
Sshhh! Princess Syalis is trying to get a good night's sleep. Some shut-eye. Forty winks. Catch some Z's. Long ago in olden times when people and demons lived together in—well, disharmony, really—a demon king kidnaps a human princess and imprisons her in his castle. Bereft, the princess's subjects beat their chests in anguish…until a hero arises to spearhead Project Rescue Our Princess! While waiting for her knight in shining armor, what's an imprisoned princess to do...? Teddy-bear guards with bat wings are all very well, but her dungeon cell is bo-o-o-ring! So, she decides to wile away the long hours by sleeping. Now if only she could get comfortable…and didn't suffer from insomnia...

Artworks


Other Facts

English PublisherViz
Original PublisherShogakukan
PublishedMay 11, 2016 to ?
SerializationShounen Sunday
Last Updated2 days ago
Other namesMaoujou de Oyasumi, Sweet Dreams in the Demon Castle, Sleeping in Devil's Castle, 在魔王城说晚安, 魔王城でおやすみ, Maou-jou de Oyasumi

Chapters

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Vol.TBD Chapter 101: Princess is Forever Dreaming
2 days ago
Vol.TBD Chapter 100: Let's Show Some Skin, Whee!March 14, 2019
Vol.TBD Chapter 99: Visiting the Nicest Places of Hell Spring Over and OverMarch 5, 2019
Vol.TBD Chapter 98: Journey to Getting Used to the PrincessMarch 2, 2019
Vol.TBD Chapter 97: Okay to Sleep, Okay to FightFebruary 24, 2019
Vol.TBD Chapter 96: If Somebody Gives You Their Name, You Have to Give Yours!February 12, 2019
Vol.TBD Chapter 95: New Years Futon Material Trade FairFebruary 9, 2019
Vol.TBD Chapter 94: Lying is Despicable!February 5, 2019
Vol.TBD Chapter 93: Since It Feels Suprisingly Good The Moment You Support SomeoneFebruary 3, 2019
Vol.TBD Chapter 92: Princess's Unimagined PovertyJanuary 26, 2019
Vol.TBD Chapter 91: 1-on-1 in the WardJanuary 25, 2019
Vol.TBD Chapter 90: Don't "It'll Prick a Little" Me!!January 23, 2019
Vol.TBD Chapter 89: You Dug Into a Grave, Not a Kotatsu!January 3, 2019
Vol.TBD Chapter 88: It Contains Handmade ChocolateDecember 31, 2018
Vol.TBD Chapter 87: When it Comes to Movies, You Need PopcornDecember 25, 2018
Vol.TBD Chapter 86: Friend (Futon) (Stalker)December 25, 2018
Vol.TBD Chapter 85: Together with Spine-chanDecember 25, 2018
Vol.TBD Chapter 84: The Sleep Princess' SpeechDecember 15, 2018
Vol.TBD Chapter 83: Don't Forget About SuccyunNovember 24, 2018
Vol.TBD Chapter 82: You Can't Possibly Hide, Right?November 18, 2018
Vol.TBD Chapter 81: The Girl Travelling Between Castles AgainNovember 9, 2018
Vol.TBD Chapter 80: Love ♡ Princess MandragoraOctober 24, 2018
Vol.TBD Chapter 79: Samsara at the ChurchOctober 19, 2018
Vol.TBD Chapter 78: Princess RunningOctober 14, 2018
Vol.TBD Chapter 77: I can meet you in your dreams!October 8, 2018
Vol.TBD Chapter 76: How Many More Minutes Must, I Stay Awake?October 4, 2018
Vol.TBD Chapter 75: For the Sake of that Worthless VictorySeptember 5, 2018
Vol.TBD Chapter 74: Do Your Best Doppelgänger Succyun!September 5, 2018
Vol.TBD Chapter 73: Outfit Exchange TreatAugust 29, 2018
Vol.TBD Chapter 72: Muu Muu is the Country of DreamsAugust 21, 2018
Vol.TBD Chapter 71: Heartfelt Party NightAugust 17, 2018
Vol.TBD Chapter 70: Night Rehearsal Practice (Wholesome)August 4, 2018
Vol.TBD Chapter 69: Jiggly Isn't a Bad Flavour!August 3, 2018
Vol.TBD Chapter 68: Finger-Drawn FireworksJuly 29, 2018
Vol.TBD Chapter 67: The Demons Turn Ghastly Pale, The Colour Of FatigueJuly 27, 2018
Vol.TBD Chapter 66: Demon King Castle Prison BreakJuly 7, 2018
Vol.TBD Chapter 65: Do You Really Believe I Would Correct My Behavior After Seeing Somebody Else's?June 11, 2018
Vol.TBD Chapter 64: The Black Full-Time PrincessJune 5, 2018
Vol.TBD Chapter 63: Don't Avert Your EyesMay 22, 2018
Vol.TBD Chapter 62: Together With Suyaris Onee-ChanMay 21, 2018
Vol.TBD Chapter 61: Sudden Change! Big Eggplant Earless SealMay 6, 2018
Vol.TBD Chapter 60: It's Against The Rules To Call Them An Adult ThoughApril 23, 2018
Vol.TBD Chapter 59: Super-Sized For Demon King CastleApril 13, 2018
Vol.TBD Chapter 58: The Princess's Sensitive MouthApril 1, 2018
Vol.TBD Chapter 57: Nooobody's At Fault!March 22, 2018
Vol.TBD Chapter 56: The Flower Garden Lying Beyond PerseveranceMarch 3, 2018
Vol.TBD Chapter 55: The Princess's Wonderful Pillow Store ♥February 17, 2018
Vol.TBD Chapter 54: It's for the Sake of a Girl's FriendshipJanuary 31, 2018
Vol.TBD Chapter 53: Not Remembering A-Something During A Deep SleepJanuary 25, 2018
Vol.TBD Chapter 52.5: Extra arc: Good night at Komi-san’s HouseJanuary 19, 2018
Vol.TBD Chapter 52: I Think That's a Sneaky Capture Method!January 14, 2018
Vol.TBD Chapter 51: Pollinated PrincessJanuary 6, 2018
Vol.TBD Chapter 50: The Princess Dances Even If There Isn't A MeetingDecember 16, 2017
Vol.TBD Chapter 49: I Want to Hit the Helpful Goods JackpotNovember 25, 2017
Vol.TBD Chapter 48: Badump! A Sorcery Tournament Filled with Demons!November 7, 2017
Vol.TBD Chapter 47: Taking Back the Princess (the Monster of Demon King Castle)October 29, 2017
Vol.TBD Chapter 46: Looks Like We Have a Master of All TradesOctober 20, 2017
Vol.TBD Chapter 45: The Girl Visiting Many Demon King CastlesOctober 12, 2017
Vol.TBD Chapter 44: Create and SingOctober 6, 2017
Vol.TBD Chapter 43: Attack!! Forehead Devil Subspecies!October 1, 2017
Vol.TBD Chapter 42: Which Child Sleeps the Most?September 25, 2017
Vol.TBD Chapter 41: Spine-chan Doesn't SleepSeptember 19, 2017
Vol.TBD Chapter 40: Chocolate is the Colour of Blood, the Colour of LoveSeptember 17, 2017
Vol.TBD Chapter 39.5: ExtrasAugust 12, 2018
Vol.TBD Chapter 39: Keeping Secrets Isn't Good!September 4, 2017
Vol.TBD Chapter 38: Demon King-sama's Sleep or DieAugust 24, 2017
Vol.TBD Chapter 37: A Perfectly Happy PrisonerAugust 24, 2017
Vol.TBD Chapter 36: God's Move in DreamAugust 24, 2017
Vol.TBD Chapter 35: Sweet Dreams in the Outskirts of Demon King CastleAugust 24, 2017
Vol.TBD Chapter 34: Springy ♡ PrincessAugust 24, 2017
Vol.TBD Chapter 33: Stop Getting Serious in a Party Game!June 12, 2017
Vol.TBD Chapter 32: Because the Princess is a Naughty GirlJune 12, 2017
Vol.TBD Chapter 31: Although I got merged with a cat, isn't that okay...?June 12, 2017
Vol.TBD Chapter 30: I Can Upgrade the Window!June 12, 2017
Vol.TBD Chapter 29: Princess' Panties are Good PantiesJune 12, 2017
Vol.TBD Chapter 28: Totally Fluffy Futon TaxiJune 12, 2017
Vol.TBD Chapter 27: The Sloth Making MachineJune 12, 2017
Vol.TBD Chapter 26.5: ExtraFebruary 19, 2018
Vol.2 26th Night: Demon King Castle (Sleep) Paralysis PlayJune 12, 2017
Vol.2 25th Night: On a Cradle Unto the GraveJune 12, 2017
Vol.2 24th Night: My Laundry PathJune 12, 2017
Vol.2 23rd Night: I'm Going to Visit You TonightJune 12, 2017
Vol.2 22nd Night: Guardian of the Quiet SleepJune 12, 2017
Vol.2 21st Night: Why Can't Honey Be Produced From Nothing?June 12, 2017
Vol.2 20th Night: A Flower's Life is ShortJune 12, 2017
Vol.2 19th Night: Badump! The Training Tournament Filled With DemonsJune 12, 2017
Vol.2 18th Night: Friend (Futon)June 12, 2017
Vol.2 17th Night: She Looks Like the Princess and has the Same Brains as Her TooJune 12, 2017
Vol.2 16th Night: Princess Finisher-samaJune 12, 2017
Vol.2 15th Night: Innocent VillainJune 12, 2017
Vol.2 14th Night: The Steam Killing DemonJune 12, 2017
Vol.1 13th Night: Sacred Treasure Crossing: Wild WorldJune 12, 2017
Vol.1 12th Night: The Sea of Pillows and the Tower of BabelJune 12, 2017
Vol.1 11th Night: Touch Her and She's YoursJune 12, 2017
Vol.1 10th Night: Good Night, BabyJune 12, 2017
Vol.1 9th Night: But You Have to Pay the Price, Right?June 12, 2017
Vol.1 8th Night: The Princess's Three-Star ArmorJune 12, 2017
Vol.1 7th Night: The Poisonous Mushroom of DreamsAugust 30, 2016
Vol.1 6th Night: Go Bark at the MoonAugust 30, 2016
Vol.1 5th Night: Because the Tower is ThereAugust 30, 2016
Vol.1 4th Night: Longing to Sleep on the Shield of the WindAugust 30, 2016
Vol.1 3rd Night: Sweet Sleep Like the DeadAugust 30, 2016
Vol.1 2nd Night: Bedsheets Like the Shining SeaAugust 30, 2016
Vol.1 1st Night: Castle of the Sleepy PrincessAugust 30, 2016