Nightmare Anatomy is the second studio album by American band Aiden. It was released on October 4, 2005 through Victory Records. It was supported by three singles: "Knife Blood Nightmare", "The Last Sunrise", and "Die Romantic".
The Japan release also contains a bonus DVD with interviews, music video, and other material.
For Nightmare… I'd learnt how to write and arrange things better than I'd done on Our Gang. Nightmare is a lot more focused on structure; verse, chorus, verse, chorus. I know that a lot of people like Nightmare Anatomy and I think it's a great record for where we were at as a band then. It's a hard-hitting, in your face punk rock album and that was the album we wanted to make at the time.