TabScout.

"Svefn-g-englar" is a song by Icelandic post-rock band Sigur Rós, from their second album, Ágætis byrjun. "Svefn-g-englar" was released as a single in 1999, featuring two studio recordings — "Svefn-g-englar" (Icelandic pun "sleepwalkers" or "Sleep angels") and "Viðrar vel til loftárása" ("good weather for airstrikes"), both from Ágætis byrjun — and two songs recorded live at the Icelandic Opera House in Reykjavík — "Nýja lagið" ("new song"), which has not yet been recorded in studio, and "Syndir Guðs" ("God's sins"), from the group's first LP, Von.