There are at least 3 artists called Deep Sleep: 1) Deep Sleep are a hardcore/punk band from Baltimore,MD. 2) Deep Sleep are a Indie Electronica / Pop band from Portugal. 3) Deep Sleep are a Hard Rock band from the small town of Kokemäki, Finland. 4) There also are relaxation music on the same name Deep Sleep. The biographies for each are listed below: 1) Deep Sleep are a hardcore/punk band from Baltimore, MD. They pride themselves on playing some raw, spiteful, in your face hardcore punk rock. Drawing some heavy influences from classic 80's SoCal punk bands such as the Descendents and Adolescents, their critics note how they're able to still maintain a healthy dose of originality. They have released 3 seven inchers & a CD called "Three Things at Once" (homage to Descendents "Two Things at Once" CD) which compiles all three of their 7" releases. 2) Deep Sleep are a Indie Electronica / Pop band from Portugal. They Formed in 2005, Deep Sleep is an European Electro Pop band openly influenced by acts like David Bowie, Depeche Mode or The Cure. After hitting the cyberspace with the promising “Sessions EP” and a series of MySpace exclusive singles, they now present an exciting and powerful debut album. "Shadow of a Dream" delivers themes that range from contagious pop and dark dance floor beats to introspective urban soundscapes. 3) Deep Sleep formed in '03 by Nalle and Tero in Kokemäki. The Deep Sleep is heavy riffs and cold beer fueled eight-legged boogie machine. Taking influences from such bands as Black Sabbath, Entombed, Motörhead, Monster Magnet.