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Sleep

Original title: Jam
  • 2023
  • 1h 35m
IMDb RATING
6.6/10
6.5K
YOUR RATING
Lee Sun-kyun and Jung Yu-mi in Sleep (2023)
A young, expectant wife must figure out how to stop her husband's nightmarish sleepwalking habits before he harms himself or his family.
Play trailer1:40
3 Videos
34 Photos
Dark ComedyHorrorMysteryThriller

A young, expectant wife must figure out how to stop her husband's nightmarish sleepwalking habits before he harms himself or his family.A young, expectant wife must figure out how to stop her husband's nightmarish sleepwalking habits before he harms himself or his family.A young, expectant wife must figure out how to stop her husband's nightmarish sleepwalking habits before he harms himself or his family.

  • Director
    • Jason Yu
  • Writer
    • Jason Yu
  • Stars
    • Jung Yu-mi
    • Lee Sun-kyun
    • Kim Geum-soon
  • See production info at IMDbPro
  • IMDb RATING
    6.6/10
    6.5K
    YOUR RATING
    • Director
      • Jason Yu
    • Writer
      • Jason Yu
    • Stars
      • Jung Yu-mi
      • Lee Sun-kyun
      • Kim Geum-soon
    • 35User reviews
    • 87Critic reviews
    • 80Metascore
  • See production info at IMDbPro
    • Awards
      • 3 wins & 14 nominations total

    Videos3

    Official Trailer
    Trailer 1:40
    Official Trailer
    Sleep - Trailer
    Trailer 0:40
    Sleep - Trailer
    Sleep - Trailer
    Trailer 0:40
    Sleep - Trailer
    Sleep
    Trailer 1:39
    Sleep

    Photos34

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    Top cast16

    Edit
    Jung Yu-mi
    Jung Yu-mi
    • Soo-jin
    Lee Sun-kyun
    Lee Sun-kyun
    • Hyun-soo
    Kim Geum-soon
    • Shaman
    Kim Gook Hee
    • Min Jeong
    Lee Kyung-jin
    • Soo-jin's Mother
    Yoon Kyung-ho
    Yoon Kyung-ho
    • Doctor
    Lee Dong-chan
    Lee Dong-chan
    • Park Chun-gi
    Ha-na-im Hong
    • Receptionist
    Park Hyun-Jeong
    • Nurse
    Kim Jun
    • Jin-hyeok
    Nam-Woo Kim
    • Soo-jin's Co-worker
    Oh Yeon-su
    Oh Yeon-su
    • Drama Actress
    Edson Camacho
    • Dr. Kim
    • (English version)
    • (voice)
    Abi Kumar
    • Hyun-su
    • (English version)
    • (voice)
    Lucia Lobosvilla
    • Additional
    • (English version)
    • (voice)
    Lukas Timmerman
    • Choi Jin-hyuk
    • (English version)
    • (voice)
    • Director
      • Jason Yu
    • Writer
      • Jason Yu
    • All cast & crew
    • Production, box office & more at IMDbPro

    User reviews35

    6.66.4K
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    Featured reviews

    5daoldiges

    Thriller Kind of Short on Thrills

    Sleep come with some pretty good credentials and i was looking forward to checking it out. Unfortunately, it didn't live up to my expectations as i found it lacking in story development and unable to create the desired levels of tension one could reasonably expect from a film of this type. The performances were fine but there were quite a few gaps in the story with too little character development taking place. Also, there were too many examples of the characters playing either very passively or unwittingly to the point of losing credibility. The end of the film was not able to create anywhere near the drama I could tell everyone was going for and it felt a it forced. Sleep isn't all but still a bit disappointing.
    8raymondmuller

    Sleep - Keept m.e up at Night

    Terrific premise for a movie that really delivers - sure the cliched horror movie scares run through much of the film but everything is performed in such an imaginative and inventive way that you are fascinated - engaged - and thoroughly frightened - Sleep has a great premise - two loving individuals have their world turned upside down by the husbands sleep walking - sleep walking that turns into a horror show as the film moves forward - is he having a psychotic break ? Is it really a sleep disorder ? Or is there something more sinister in the works? Who is the really crazy person here? Noone is safe as the movie progresseses..and while an overall simple movie it is powerful in its delivery - with characters that are very well developed - and two dogs that are essential to the overall plot - and a power drill - enough said - Lots of fun! Delivers the goods !!
    9TaylorYee94

    It's gonna be hard for me to fall asleep tonight.

    There is no jump scare, but how 'Sleep' manipulates my fear, uncertainty, and anxiety is something else. It's a kind of horror that I can watch without getting too scared, but I cannot go to sleep, thinking about the whole movie over and over in my head. The situation in the movie might seem extreme, but sleep disorder, noise between floors, and postpartum depression are very much realistic social problems and very much modern problems as well. They are almost tangible, and you hear about them everyday. Three things combined in the movie, the ending is not that extreme anymore, and it's scarier because it can happen to me, too.

    How the director uses lighting and composition makes the movie more intense. Before the wife is affected by husband's abnormal behavior during REM sleep, lighting is shed in front of her face. However, once she starts to lose control of her reasons and mental health, the lighting moves to the back of her head, increasing the eerie atmosphere and highlighting the sudden change.
    8jtindahouse

    Well acted with some excellent dark tones

    Short review: Watching a film called 'Sleep' late at night seems like a challenging task. Luckily the film was so good that even watching characters drift off at that hour didn't make me too envious. I was really impressed with this film and what it managed to get out of the concept.

    I loved that the film never felt safe. There was one scene involving a boiling pot. Now a lot of the time in most movies you wouldn't even consider the implication a possibility. Here though, it felt possible and I saw some hands go to mouths (mine included). This film is even made in such a crafty way that it is able to pull off and make exciting a PowerPoint presentation late in the film. Also the two lead actors turn in great performances that help elevate the film. This was a good one. 8.5/10.
    7ryanpersaud-59415

    Tiff '23: Great Premise, But Needed Better Execution to Really Fulfill Its Potential

    Sleep has probably one of the best premises for a horror film that I've ever seen. The idea of the person sharing your bed doing strange and sometimes terrifying things in their sleep is almost a *primal* fear, something inherent to every and anyone who shares a bed with their partner: "What are they doing in their sleep? Am I safe with this person next to me?"

    It's such a brilliant concept, that the movie almost writes itself. And that's the thing...this movie needs better writing. There's something missing from the narrative, undoubtedly there to keep the mystery and ambiguity the entire way through, but it feels like the script needed a bit more complexity. I wished the characters and their relationship was fleshed out, that we learned more about them and their dynamics, to help really generate discussion as to what's going on. I wish an unseen and unheard character didn't have such an impact on the narrative; someone who is only mentioned a couple of times and very briefly. The film also jumps forward in time at several points for no apparent reason...it raises more questions than answers and I get the sense that no one knew how to address some of these plot holes.

    It's a shame, because there's so much about this movie that works. It's very scary at times, generating enormous tension that you can cut through with a knife. And there's a wonderful bait-n-switch where your perspective on what's going on is tested and it's a juicy prospect. The film also has a wicked sense of humour and that always helps with otherwise very dark subject matter.

    The performances are also quite excellent; Jung Yu Min in particular carries a lot of this movie on her shoulders and she's absolutely EXCELLENT. I just felt like all the other characters weren't fleshed out enough for me to really connect with them. Korean horror is renowned for its character work, slow pace, and shocking twists. I wish this movie took its time more and did a bit more world building. At a scant 95 minutes, it certainly could've used another 15-20 minutes to do that, and it wouldn't have made the movie worse.

    However, I can't pretend like this isn't a good time. The film is creepy, effective, and again, just has that killer premise that's inherently good. Is it perfect? No. Could it have been even better? I suspect so. But given this is Jason Yu's first film, it's not a bad debut at all.

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    Storyline

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    Did you know

    Edit
    • Trivia
      Final film role of Lee Sun-kyun before his passing in December 2023.
    • Connections
      Referenced in Film Junk Podcast: Episode 979: Companion (2025)

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    FAQ

    • How long is Sleep?
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    Details

    Edit
    • Release date
      • September 6, 2023 (South Korea)
    • Country of origin
      • South Korea
    • Official site
      • Curzon Artificial Eye (United Kingdom)
    • Language
      • Korean
    • Also known as
      • Sleep: El mal no duerme
    • Production companies
      • Lewis Pictures
      • Nova Media
      • Solaire Partners
    • See more company credits at IMDbPro

    Box office

    Edit
    • Gross US & Canada
      • $34,221
    • Opening weekend US & Canada
      • $11,170
      • Sep 29, 2024
    • Gross worldwide
      • $11,063,144
    See detailed box office info on IMDbPro

    Tech specs

    Edit
    • Runtime
      1 hour 35 minutes
    • Color
      • Color
    • Sound mix
      • Dolby Digital

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