FIG. 1 is a perspective view of the semi-fitted top sheet, showing my new design; the mattress shown in broken lines is for environmental purposes only and forms no part of the claimed design;

FIG. 2 is a top view thereof in which the mattress is shown in phantom;

FIG. 3 is a bottom view of my inventive semi-fitted top sheet;

FIG. 4 is a side view thereof, in which the mattress is shown in phantom;

FIG. 5 is a bottom end view of the semi-fitted top sheet; and,

FIG. 6 is a top end view thereof.