I decided to do a simple crib skirt for Kate's bedding. Elegant and classy.
I measured the crib mattress and made a square the same size of cream fabric. Then I measured from the floor to the bottom of the mattress. I cut two blocks of fabric the width of the mattress (plus 1 inch for seam allowances). I cut the height so once I sewed the 4" ruffle on and accounted for a 1/2 inch seam allowance it would be the same height as the measurement from the floor to the bottom of the mattress.
I pinned the ruffle to the fabric and sewed into place and surged the edges.
I did a 1/2 inch hem on each side to finish the raw edges and sewed each of the 4 sides to the cream square I had cut out the size of the mattress.
I love the way it turned out. It is simple with just a ruffle at the bottom but I think it fits the room perfectly.