Sleepless Nights is a posthumous compilation album by Gram Parsons. There are no original Parsons songs on this album; the majority are vintage country songs with the exception of "Honky Tonk Women" by Jagger/Richards. Some of the highest praise for the album is due to the inclusion of three tracks featuring Emmylou Harris and omitted from the 1973 album Grievous Angel; "Sleepless Nights" (allegedly the original title for the Grievous Angel album), "The Angels Rejoiced in Heaven Last Night" and "Brand New Heartache". The majority of the tracks are from a much earlier period and recorded during Parsons's time with The Flying Burrito Brothers, shortly before his exit from the group. These songs had not been previously released and are not as highly regarded by many critics; Rolling Stone refers to them as "sluggish and dispirited".