"After a long five years since their last album, Rigor Sardonicous return with their 3rd and darkest opus of Apocalyptic Doom. Imagine Thergothon, early Skepticism, Disembowelment, Symphony of Grief, and Winter stripped to its barest elements. Only for the truest of DOOM enthusiasts."
http://www.paragonrecords.net/mp3/Rigor%20Sardonicous%20-Sleepless.mp3
http://www.paragonrecords.net/mp3/Rigor%20Sardonicous%20-Sleepless.mp3