"Sleepless" is the debut single from Australian musician Flume. The track features Sydney based duo Antony for Cleopatra and was released on 1 August 2011. Flume was discovered and signed in 2011 following an original artists competition managed by the Australian record company Future Classic. He submitted the tracks "Sleepless", "Over You" and "Paper Thin", but came second in the competition, after which he was picked up by Future Classic, and the singles were subsequently released.