"Sweet Dreams" is a song by American singer and songwriter Beyoncé from her third studio album I Am... Sasha Fierce (2008). Originally titled "Beautiful Nightmare", it leaked online in March 2008. The song was written and produced by Knowles, James Scheffer, Wayne Wilkins, and Rico Love. Columbia Records released "Sweet Dreams", the album's sixth single, to mainstream radio and rhythmic contemporary radio playlists in the United States on June 2, 2009, and elsewhere on July 13. It is an adventurous song composed in a synthpop arrangement and its instrumentation includes synthesizers, a keyboard, and snare drums. Knowles employs slinky vocals to sing the haunting lyrics, which describe a romantic relationship that the female protagonist believes could be a dream.