A decade after releasing their debut album, , return to their roots on and continue the refinement of their sound that began on later albums such as . After spending several years working exclusively with mono synths, this time and reintroduce polyphonic synths to their music. The lusher, more intricate sounds of these instruments create heightened atmospheres on songs such as "Altamira," where sweeping chords and stair-stepping arpeggios add a frostbitten glamour to 's 21st century continuation of coldwave. Thanks to the mix by the duo's live sound engineer , the clarity of each element on adds a hyperreal feel that befits the mythical influences behind its songs. The album's sparkling title track is a love song to the Greek god of sleep that's both dreamy and danceable, thanks in large part to 's beckoning whispers. For her vocals on this album, took inspiration from classic singers such as , and the presence she brings to "Angelique" adds humanity to 's sound and holds its own against their synth wizardry. She and find glamour in unlikely places throughout : "Insomnia" manages to make sleep deprivation appealing with woozy tones and streaking textures; "The Light the Whisper" silver-plates a winter sky over beats as pointed as icicles; and "A World Without Sun" envisions an apocalyptic environment over one of the album's most insistent rhythms. Filled with surreal soundscapes and fantastical tone poems, is a striking album from the duo who pioneered the coldwave renaissance of the 21st century and remain at its forefront. ~ Heather Phares