"Sleepwalking" is a single by British metalcore band Bring Me the Horizon and second to be released from the album Sempiternal, on 4 March 2013. In a track-by-track interview with Metal Hammer, frontman Oli Sykes announced his intention to make this song the second single and described it as "one of [their] best written songs". In its first week the song reached № 4 on the UK Rock Singles Chart, rising to № 3 the next. On 28 February it was BBC Radio's "Hottest Record in the World". A 10" vinyl of the track was released for Record Store Day (20 April 2013).