Mister Sandman was written by Pat Ballard and released by The Chordettes in 1954, becoming one of the defining hits of the early pop vocal group era. The song's bouncy harmonies kept it in films, commercials and oldies radio for decades. Online, the opening vocal line took on a second life as a meme sound, especially on TikTok, where creators pair its wholesome dream-bringing lyric with ironic wishes, thirst traps and glow-up reveals. Its instantly recognizable melody keeps it useful as shorthand for a fantasy coming true.