Brief Nocturnes and Dreamless Sleep is the eleventh studio album by American progressive rock band Spock's Beard released on April 2, 2013.

[2] It is their first album with new singer Ted Leonard and drummer Jimmy Keegan in place of Nick D'Virgilio, while former member Neal Morse co-wrote two tracks,[3] including "Waiting for Me", on which he plays guitar.

[5] On 19 November 2011, Nick officially announced that he had left the band to pursue other projects, including playing for Cirque du Soleil.

Contributors to the campaign were entitled to preorder a limited edition of the album that would include a bonus track not present on any other releases.

[10] The album has received positive reviews from music critics and has continued the return to progressive rock shown in its predecessors Spock's Beard and X.