While You Were Sleeping (2017)

A South Korean fantasy drama where prophetic dreams and shared visions bind a young woman and a rookie prosecutor in a race against fate.

While You Were Sleeping - Series Information

  • Original Title: 당신이 잠든 사이에
  • First Air Year: 2017
  • Last Air Year: 2017
  • Type: TV Series
  • Genres: Sci-Fi, Fantasy, Drama
  • Content Rating (US): TV-14
  • Episode Runtime: Average runtime per episode: 30 minutes
  • Number of Seasons: 1
  • Number of Episodes: 32
  • Status: Ended
  • Original Language: Korean
  • Spoken Languages: Korean
  • First Air Date: September 27, 2017 (United States - TV-14), September 27, 2017 (Brazil - 14), September 27, 2017 (South Korea - 15)
  • Networks: SBS
  • Alternative Titles: Sən Yatanda (AZ), Доки ти спала (UA), Dangshini Jamdeun Saie (KR), あなたがねむっているあいだに (JP), Пока ты спишь (RU)
  • Production Companies: iHQ
  • Production Countries: South Korea

While You Were Sleeping - Plot

Nam Hong Ju, endowed with the ability to foresee events, resides with her widowed mother who runs a small restaurant. Despite her gift, she often finds herself powerless to change the outcomes. On the other side of the street, Jung Jae Chan, a rookie prosecutor, and his younger brother Seung Won become their new neighbors. An unusual dream involving Hong Ju, ruthless attorney Lee Yu Beom, and a life-saving intervention leads Jae Chan to realize their destinies are intertwined, as they begin sharing dreams and connecting in mysterious ways.

While You Were Sleeping - Trailer

Watch the official trailer and get a first look at the dreamlike world of the series:

That future, that time, that fate, can it be changed?

Where to Watch While You Were Sleeping

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While You Were Sleeping - Cast & Crew

Main Cast

  • Suzy
  • Lee Jong-suk
  • Jung Hae-in
  • Lee Sang-yeob
  • Hwang Young-hee
  • Shin Jae-ha
  • Kim Won-hae
  • Park Jin-joo
  • Lee Ki-young
  • Ko Sung-hee

Writers

  • Park Hye-ryun

While You Were Sleeping - FAQs

Where can you stream While You Were Sleeping?

While You Were Sleeping is available to stream on Rakuten Viki (with subscription or ad-supported plan) and Kocowa (subscription). Episodes can also be purchased through the Apple TV Store. Availability may vary by region, so checking JustWatch is recommended for the most current options.

Who are the lead actors in While You Were Sleeping?

The series stars Suzy as Nam Hong-joo, a young woman with prophetic dreams, and Lee Jong-suk as Jeong Jae-chan, a determined rookie prosecutor. Jung Hae-in plays Han Woo-tak, a police officer who also shares the dream connection, forming the central trio of the story.

Is While You Were Sleeping worth watching?

While You Were Sleeping is widely praised by K-drama fans for its inventive fantasy premise, strong chemistry between leads Suzy and Lee Jong-suk, and emotionally resonant storytelling. Writer Park Hye-ryun's sharp script balances romance and suspense effectively, making it a standout entry in the fantasy-romance genre.

What is While You Were Sleeping about?

The series follows Nam Hong-joo, who can foresee tragedies in her dreams, and rookie prosecutor Jeong Jae-chan, who discovers they share a mysterious dream connection. Together with a police officer, they race to prevent the dark futures Hong-joo witnesses, while confronting a cunning and morally corrupt attorney.

Did Lee Jong-suk and Suzy date after While You Were Sleeping?

Yes. Lee Jong-suk and Suzy confirmed they were in a real-life romantic relationship in early 2018, following their on-screen pairing in While You Were Sleeping. Their off-screen chemistry drew significant media attention in South Korea and internationally, amplifying the series' already strong fan following.

How many episodes does While You Were Sleeping have?

While You Were Sleeping consists of 32 episodes across one season, which aired on SBS in South Korea. Each episode runs approximately 30 minutes, and the series also includes one special episode. It originally broadcast from September to November 2017.

Who wrote While You Were Sleeping?

While You Were Sleeping was written by Park Hye-ryun, a highly regarded Korean screenwriter known for crafting emotionally intelligent dramas. She is also the writer behind acclaimed series such as I Hear Your Voice and Pinocchio, both of which similarly blend fantasy elements with legal and journalistic themes.

What is the content rating for While You Were Sleeping?

While You Were Sleeping carries a TV-14 content rating in the United States, indicating it contains material that may be unsuitable for children under 14. The series includes mild romantic content, scenes of peril, and thematic elements involving crime and legal corruption, but remains accessible to general audiences.

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