There are different artists using the name 'Sleepwalker': 1) Atmospheric Black Metal/Post-Rock. Very little is known about this band, but it is the solo project of the drummer of Fell Voices and has two CD-R demos, each with three untitled tracks. Sleepwalker is working on new material as of May 15th, 2011, and the first demo was remastered and re-released on LP by Vedavu in 2012 (this time with song titles: "Born of Dream", "Sleepwalker", and "Ecstatic Unknown").
Silbermond is a German rock band from Bautzen. The band originally formed in 1998 under the name Jast, which comes from the first letters of the band members' names (Johannes, Andreas, Stefanie, Thomas). In 2001, they changed their name to Silbermond ("Silver moon"). As opening act for Jeanette Biedermann, they became increasingly popular in Germany and Austria. They released their first album "Verschwende deine Zeit" ("Waste your time") in 2004. In late 2004 they went on tour, publishing their first concert DVD "Verschwende Deine Zeit - Live" in April 2005, which reached gold status.