Träumen und Wachen (Dreaming and being awake), WAB 87, is a song, which Anton Bruckner composed in 1890 to celebrate the 100th anniversary of Franz Grillparzer's birth.

The text is from the end of Act I of Franz Grillparzer's drama Der Traum ein Leben.

Bruckner dedicated the composition to his housemate Wilhelm Ritter von Hartel, the rector of the university of Vienna.

[1][2] The piece, of which the original manuscript is stored in the archive of the performing choir (current name: Universitätssängerschaft 'Barden zu Wien'), was published in 1891 by Theodor Rättig, Vienna without Bruckner's assignment.

The 75-bar long work in A-B-A' form is scored in A-flat major for TTBB choir and tenor soloist.