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魔王城でおやすみ [Maō-jō de Oyasumi] #6

Sleepy Princess in the Demon Castle, Vol. 6

Accompanied by an entourage of demon guards, Princess Syalis takes a field trip to the human world to acquire a special pillow. Then she receives several invitations from her demon First, to replace the cooks who have succumbed to heat exhaustion in the Demon Castle kitchen (somebody needs to make Quilladillo’s Monster Bird Egg Custard). Second, to attend a pajama party (despite being woefully ignorant of the concept). And third, to design a new area for the hero to explore (which turns out to be the exact opposite of what the demons had in mind).

168 pages, Kindle Edition

First published January 18, 2018

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Kagiji Kumanomata

47 books30 followers

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5 stars
146 (51%)
4 stars
97 (34%)
3 stars
38 (13%)
2 stars
4 (1%)
1 star
0 (0%)
Displaying 1 - 15 of 15 reviews
Profile Image for EvaN.
109 reviews2 followers
September 14, 2026
4,5* One of the nicest volumes I've read in the series :D
Profile Image for Brittany.
1,475 reviews61 followers
December 13, 2021
Still cute but not the best volume of the series.
The travel to the human realm with the demons was fun. Some of the popcorn flavours, like chicken curry popcorn, sounds disgusting. Found it amusing that demons dress as humans for halloween.
Profile Image for Abi.
2,215 reviews
September 6, 2019
This was a pretty good installment. Everyone realized that Daw-what's-his-name was Dawner thought a funny dream, our main cast visited the human world, and Syalis had a sleepover. I thought that this was a funny volume, and that the art has continued to be consistently high quality. I'd definitely recommend the series, and will read the next volume in a month or two. 3.5 stars.
Profile Image for Kimi.
293 reviews
January 29, 2026
These books are so silly I just love them so much. I always enjoy the plot development as it goes, though it may seem small. Seeing the hero's attempts to save her are rather humorous. Really it's just about her acceptance in the demon castle, how much they have really made her a part of their life even as they try to keep considering her as a hostage. It's just good fun.
Profile Image for Nadina.
3,321 reviews7 followers
June 1, 2019
I love this series (though I do wish they would decide between calling the princess Sya Lis and Syalis) it is fun and funny. I love the princess and how she deals with being a captive and that when the demons are faced with the princess they are confused and fall for whatever the princess wants them to do most of the time. I also feel slightly sorry for the demons for how the princess treats them sometimes.
I like the storyline we have been faced with in this volume and the last where we have started to see more of the hero's (Dawner) quest and progression to rescuing the princess and also the connection between the princess and Dawner.
It's a great series and I really like the illustrations which are generally simple enough but also include little details you might only spot if examining closely.
Profile Image for Meghan Hills.
110 reviews1 follower
August 2, 2021
I’ve loved each and every volume before and this ones no exception but it might be a definite new favorite. I couldn’t stop laughing through most of it and am eager to pick up more of the series
Profile Image for Claire.
3,673 reviews47 followers
August 1, 2023
The slumber party, Teddy Grwrland and a trip to the human realm are awesome here. I also loved the Teddy Demon Sumo Tournament!
486 reviews2 followers
March 18, 2025
I still adore this series. Volume six is, as expected, full of shenanigans, heartwarming moments, humor, and (of course) teddy demons. I can’t wait to read more of this series!
Profile Image for Judyth.
1,837 reviews41 followers
December 23, 2019
~3.5 Stars
(Contains light spoilers.)

In this volume, Syalis goes on a mission for an as seen on tv pillow, forcing the demons to escort her to the human world in order to get it. Then she gets invited to a sleepover, but she doesn't know what a girl sleepover entails. And then the demons discover that Syalis is having trouble sleeping—that's why she needs so much sleep all the time—and discover who is doing this to her.
The venture into the human world was interesting. It's funny when the demons try to reinforce the fact that she's their hostage, because not only are they doing everything they can to appease her, she's more hostile to them and yet also doesn't seem to want to leave. When we learn more about the hero coming to save her, it becomes clear why that might be.
I like when we find out more about the actual characters. Learning more of Syalis' history, the bits we see of the hero and his progress, and the personality and background of the Demon King. Those are plots I enjoy, though I do appreciate that more of these single-chapter plots are starting to extend. And meeting Bussy was fun, too.


A review copy was provided by the publisher, VIZ Media, for an honest review. Thank you so, so much!
Profile Image for Moki-Mori.
113 reviews
October 18, 2025
I absolutely loved the anime ‘Sleepy princess in the demon castle’ so when i found out my library had the manga i HAD to read them. And they did not disappoint.

If the anime is funny, these books are 10 times better. The humour is perfect and I cannot stop laughing aloud whenever I read these. The art is beautiful, and I cannot get over how funny but interesting the concept of this series is.

1000000/10 recommend you read this, it's funny and such a good read!
Profile Image for Emma (littledollreads).
1,121 reviews25 followers
May 22, 2021
I cannot express to you guys just how much I am enjoying this series. It is just so much fun. I love the situations that all our characters get themselves into whether it be the fault of the princess or the daemons. I also love how well-balanced the introduction of new characters is with the development of our staple cast members. I should also note how there appears to be a strengthening of continuity with an overarching story being developed through these books. I'm curious to see where that is going. I can't wait till I get my hands on the next volume.

Reread: The princess really be out here fulling the shipper's fires
Profile Image for Marianne.
594 reviews16 followers
June 4, 2021
Wooohh! 😁👌🏽📖 Finally, finished this volume. This one made me laugh, truly it did 🤣😂. Love it for its hilariousness 🤣 and heartwarming characters.
Displaying 1 - 15 of 15 reviews