you’ll need about 40 g Cascade 220 = 1,4oz (= 80 meters = 87 yards); 4 dpn (or a short circular needle) US 10.5 (6,5mm);

this pattern is seamless, knitted around and top down. it’s design to fit 13” Ø heads (15-17” waldorf dolls).
I recommend hand felting if you don’t have a top loaded washer, it’s the best way to obtain the perfect size.