"Cocoon" is a song by Icelandic singer Björk for her fourth studio album, Vespertine (2001). Written and produced by Björk and Thomas Knak, it was released as the album's third single on 11 March 2002 by One Little Indian Records. Inspired by her relationship with artist Matthew Barney, Björk wanted to create a record with a domestic mood. Working with Knak, she wrote "Cocoon", a song which is lyrically about a woman who describes making love with her lover during their post-coital hibernation, and includes frank sexual narrative related both explicitly and through over-sharing and metaphor.

Eiko Ishioka was a Japanese art director, costume designer, and graphic designer known for her work in stage, screen, advertising, and print media.