Kim Sung-won (; born February 21, 1984), better known by his stage name Sleepy (), is a South Korean rapper and a television personality. He is a member of the hip hop boy duo Untouchable. He released his solo debut single, "Cool Night", on June 16, 2015. He became a household name after appearing on reality TV shows like Real Man, I Live Alone, Law of the Jungle, and We Got Married.
TS Entertainment lawsuit On September 14, 2019, it was revealed that Sleepy had filed a lawsuit to terminate his contract with TS Entertainment, citing lack of trust after they refused to show him payment documents and a physical copy of his contract. Sleepy also said that he did not receive any payment for his activities until 10 years after his contract was signed. TS later denied these statements, saying all of Sleepy's claims were "false" and that he embezzled funds from the company, which Sleepy denied. The next day, it was announced TS Entertainment was forwarded to prosecution for overdue payments of artists.
Personal life Sleepy planned to marry his girlfriend Kim Na-hyun on October 10, 2021, however he postponed the wedding due to the COVID-19 pandemic. Later in March 2022, Sleepy announced that he would marry his non-celebrity girlfriend on April 9, 2022.
On November 6, Sleepy shared on his Instagram the happy news of his wife's pregnancy and that he was going to be a father soon. Their first child, a daughter, was born on March 29, 2024. On December 2nd, 2024 Kim Na-hyun appeared for an interview for the first time on television with Sleepy. During the interview Sleepy said his wife is 8 years younger than he is and Na-hyun also revealed that she was currently 4 months pregnant with their second child. Their second child, a boy, was born on April 23, 2025.
Discography
Singles Title Year Peak chart positions Sales Album KOR As lead artist "I Feel Blame" () 2015 39KOR: 68,580 rowspan="9" "Body Lotion" () 2016 —KOR: 20,847 "So What" () —KOR: 16,984 "Oh Yeah" — rowspan="6" "Beautiful Life" 2017 — "Whatever" () — "Placebo" () — "Because of the Money" ()2020— "Santa Brothers!" ()— Collaborations "Cool Night" () 2015 18KOR: 213,195 rowspan="2" "S.M.T.M (Show Me The Money)" 2017 82KOR: 45,420Cumulative sales of "S.M.T.M (Show Me The Money)":"—" denotes releases that did not chart.
Filmography Television shows Year Title Notes 2015 Cultwo Show Mash Up!Pop and EDM to collide with Hyoyeon, Mir, Hyejeong, Seo In Young, and Sleepy confirmed for upcoming show 'Mash Up'!, Allkpop, Retrieved on July 10, 2017 Host Real Man Episode 96- 2016 Cultwo ShowUntouchable's Sleepy put on over 20 lbs recently?, Allkpop, Retrieved on July 10, 2017 We Got Married with Lee Guk-joo King of Mask Singer Contestant as "Kung Fu Panda" (Episode 57) The God of Music 2 Cast member 2017 All Broadcasting in the World Member Cultwo Show Show Me the Money 6Contestant 2020 King of Mask Singer Contestant as "You're Great!" (Episodes 275–276) 2022 One Tree Table Cast Member Extreme Beginner Cast Member Show Me the Money 11Contestant2022–2023Mr. Trot 2Contestant
Web shows Year Title Role Notes 2021 NegoKing 3 Host with DinDin 2022 Catch the Thief Cast Member
Music video appearances Year Song Title Artist 2022 "Wanna Go Get Some Abalone" () Young Tak
Awards and nominations Year Award Category Nominated work Result 2015MBC Entertainment Awards Best Male Newcomer Real Man 2016 Male Excellence Award in Variety Show We Got Married
References