A new cultivar of Miscanthus sinensis plant named ‘Sunlit Satin’ that is characterized by its medium size compact, upright plant habit with a tight base; an average of 1.3 m in height, its upright flower tassels that when opening that have a satiny sheen and are pink in color, its foliage that has a thick central variegated stripe to provide early in the season interest, its flower tassels that turn to copper color later in the season above the maturing foliage, its foliage that has a thick central variegated stripe to provide early in the season interest, and its resilient, wiry foliage with wispy leaf ends that easily follow the direction of the wind.