What makes Sleepless by King Crimson notable?

'Sleepless' achieved notable commercial success, reaching number 26 on the Billboard Modern Rock Tracks chart. Its innovative blend of progressive rock with dance music helped solidify King Crimson's influence during the early 1980s, showcasing their ability to adapt to changing musical landscapes. Released in January 1984, 'Sleepless' marked a significant point in King Crimson's career as they were reinventing their sound for the new wave era. This track was part of the band's lineup change that included the addition of Adrian Belew, who brought a fresh perspective to their progressive rock roots.