Produced by Mephistofeles.
Music by Mephistofeles. Lyrics by Gabriel Ravera.
Recorded at Machine Messiah Laboratories, Killfornia.
Mixed by Greasy Fingers and Mickey "The TurboRat" at EFSL (Evil Fidelity Sound Labs) in Argentina.
Album Master provided by SATURN'S THIRD CHILD.
Personnel:
Gabriel Ravera .Guitar and vocals (Piano on trk 6)
Magic Fingers .Bass (Piano on trk 6)
Ivan Sacharczuk .Drums
Album Photography direction by THE LIGHT OF WISDOM.
Album cover, design and layout by Gabriel Ravera.
Legal assistance by Adriano Cupelli.
Management and booking department by Ignacio DeTommaso.
Mephistofeles uses ACOUSTIC CONTROL CORP amplification, MAPEX drumsets and ZILDJIAN cymbals.

Sleep's first full-length album of new recordings since 1998. Years after the release of Volume One in 1991, Sleep's Holy Mountain in 1992 and Dopesmoker in 2003, the sonic titans reaffirm their place at the top of the riff pyramid with this brand-new double album, The Sciences.