The Sleepless
by Jen Williams
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Pub Date Sep 30 2025 | Archive Date Oct 14 2025
St. Martin's Press | Wednesday Books
Description
Godkiller meets Powerless in this epic gods-and-monsters romantic fantasy from British Fantasy Award-winning author Jen Williams.
Welcome to a world where gods and monsters roam the earth . . .
Elver is the guardian of the wild and dangerous monster forest. Saved from the brink of death by a god, her skin will poison anyone she touches.
Artair is on a mission - one that takes him face-to-face with Elver at her most ruthless. But her defenses are useless when she discovers he's the only human impervious to her deadly gift. For Artair isn't human: he's one of the Sleepless, cursed to share his body with an evil spirit.
Lucian inhabits their body while Artair sleeps, and he is hell-bent on manipulating Elver for his dark purposes. But Elver is harbouring secrets too, and she has her own reasons for feigning an alliance with these two souls.
Caught in the crossfire of gods, monsters, and a dangerous magic they can barely understand, it is only a matter of time before the paths the three of them choose to take will set alight the very foundations of their world.
With a love triangle like you’ve never seen it, incredible world-building, brilliant writing, and a dangerous quest, The Sleepless will have you spellbound.
Available Editions
EDITION | Other Format |
ISBN | 9781250409256 |
PRICE | $21.00 (USD) |
PAGES | 336 |
Available on NetGalley
Featured Reviews

I couldn’t put this down! When something is stolen from her god, Elver goes on a quest to bring it back only to find herself helping a sleepless human. I fell in love with the author’s writing style - it is very descriptive which makes the story feel so much more alive and colorful. The unique storyline, characters, world building all tied together beautifully to give you a stunning story!
Also, Sunay and Tisk *chefs kiss*
I believe this is marketed as a romantasy, and saw marketing items with team Lucian and team Artair, however the romance was very minimal and maybe leads up to have more in the sequel?
This doesn’t come out until the fall 2025 and I’m already left questioning when the next book comes out to find out what happens next!
This is my first ready by Jen Williams and now I’m very interested in picking up her other books!
Thank you Wednesday books for the arc!

I loved the story, the world building and meeting the different characters. I felt completely immersed in the story and couldn't stop reading it.

Lush prose, incredible worldbuilding, and a fresh spin on the 'monsters' trope. The Sleepless had me from page one and I quickly became attached to the characters and the author's writing style!

Jen Williams' The Sleepless is an emotionally intense YA romantasy that grabbed my attention with its high-stakes plot and unique love triangle between a monster girl, a possessed boy, and the evil spirit within him. The story had me hooked from the start, with a strong emotional pull and characters that I couldn’t help but invest in.
Elver, the fierce and isolated monster girl, is the standout for me. Cursed with a poisonous touch, she lives alone until she meets Artair, the only person immune to her curse, and Lucian, the parasitic spirit inside him. The evolving dynamic between the three was a perfect blend of tension, romance, and inner conflict, with Lucian’s morally grey character adding extra intrigue.
While I would’ve liked more time to connect with the characters individually before their paths crossed, the story's emotional depth and the compelling dynamics kept me invested. Williams’ world-building impressed me, they created a rich, immersive setting that made the plot even more captivating. The Sleepless is a beautifully crafted story about love, loss, and the struggle for autonomy, with a romance that will leave you swooning. Highly recommend picking this one up!
Thank you NetGalley and publisher for the ARC!

Thank you Jen Williams, Wednesday Books, and NetGalley for the free eARC in exchange for my review!
I absolutely loved The Sleepless by Jen Williams! The book transported me to a world brimming with gods, monsters, and dangerous magic, and I couldn’t get enough of the characters. Elver, as the guardian of the wild and mysterious monster forest, was captivating—her struggle with her deadly gift added so much depth to her journey. Artair, cursed to share his body with the manipulative Lucian, brought an intriguing dynamic that kept me hooked. The way their lives intertwined with secrets and impossible alliances made for a riveting story.
The world-building in this book was phenomenal. I felt immersed in every scene, from the dense monster forests to the high-stakes confrontations with deities and dark forces. The love triangle was unique and complex, adding emotional tension without overshadowing the gripping plot. Jen Williams’ writing is both vivid and compelling, making the story feel alive and unforgettable.
If I had to nitpick, I’d say the romance could have had a bit more focus, but it still worked well within the broader scope of the narrative. Overall, The Sleepless is a masterful blend of romance, fantasy, and adventure, and I’m already eagerly awaiting the sequel. This book definitely earns a strong 4.5 rounded to 5 stars in my eyes!

A magical adventure with just a hint of romance, I was at the edge of my seat for the entire thing. It was such a captivating story. I loved how their past was connected as much as their future. The sleepless was so intriguing, the human falls asleep and another takes over their body and when they sleep the human is back in control. I found that the more into the story i went in the more curious i was to know more. The story starts with a sacrife that is the snowball of everything that comes after.

Do I have midterms right now? Yes. Did I make time to read this book despite my tests? Also yes. Count me all the way in.
I did not expect to like this book as much as I did. I am an avid love triangle avoider (only because it becomes the main conflict over the plot!!). But Williams did a great job at everything.
The characters. Elver Elver Elver. I liked her a lot. She’s jaded, she’s violent, yet she’s clearly hurt and traumatized. She’s complex, definitely morally grey, and even more a product of her environment. Her tenderness towards her monsters and other jin was touching. Her development as the book progresses—her yearn to be better than Elver the Poison Forest Girl—was just…ugh no words besides love it. And Artair/Lucian. Loved them both. If Elver’s complex, those two are beyond convoluted. Williams’ portrayal of their backgrounds and growth, as well as their internal struggles was amazing. The concept of the Sleepless was super cool. I do wish, however, we explored more of the bonds between Elver, Artair, and Lucian. Honestly there wasn’t much romance, and it definitely was for the better. However, I wish there was more of that slowburn feeling (lingering looks, cute little accidental touches, etc) because at times, their bond felt underdeveloped and lacking a foundation.
Beyond that, the worldbuilding was great. The antagonist and her goals made sense. The 12 gods and their mages were really cool, and it was interesting seeing the traditions and cultures associated with each. I do hope that in the future, we’ll get a description of all 12, as this novel seemed focused on 4 or 5 of the gods.
The worst part about this book is that it isn’t released yet </3. Need the sequel right now.
* I received an eARC in exchange for an honest review.

I was invited by the publisher to review this book. This book has a very interesting premise, involving Elver, saved by the Queen of Serpents as a child, and Artair, who has a dangerous spirit (Lucian) control his body when he sleeps so he is locked into a tower. But Artair received a mission to steal a monster cub under the protection of Elver, which sets Elver and Lucian on a mission that will inevitably have them question everything they've ever known about their world.
This was certainly a different book than I have normally read. It is a sort of love triangle, except two of those are part of the same body. There was excellent world building in this book, and all sorts of different creatures and characters, so a lot of imagination and thought went into creating this book.
Thank you to NetGalley and St. Martin's Press/Wednesday Books for this ARC in exchange for an honest review.