Zzzaam was formed in 1997 at the live club Drug, and the band name is a combination of "zzz" and "잠" ("sleep" in Korean).[2][3] In 2000, they released their first studio album Siesta (낮잠).[4][5] They gained popularity with indie fans in the late 1990s and mid-2000s, mainly at the Hongdae club scene along with Crying Nut, No Brain, Lazy Bone and Weeper.[3]
They released their second album Requiem #1 in 2002. Both the first and second albums were produced with only a small quantity of physical albums, but they continued their career by forming a fanatic base. In 2004, they released their third studio album Mirror play (거울놀이).[3] The band was dormant since the 2004 album, during which time Choi Sohee pursued a solo musician career under the stage name Sorri (소히), and Do Jaemyeong was active as a member in the band Loro's.[6][7]
In 2023, zzzaam announced the resumption of band activities, with their first and second albums remastered and released online.[1] The remastered version of the album was well received, with John Wohlmacher of Beats Per Minute described the album Siesta as "A mysterious and intriguing listen, Siesta sounds like no other shoegaze album, yet is clearly ingrained in the core dynamics of its aesthetics and should be on every aficionado's radar."[5] They released new singles Sleepwalking Not Sleepwalking (잠꼬대 아닌 잠꼬대) and The Moment of Breakup (Yeah Yeah) (헤어짐의 순간 (예예)). Kim Byungwoo of Music Y reviewed "There is enough continuity of the band, and it is an impeccable comeback in terms of introducing a new band."[8]
