A quillow is a unique combintion of quilt and pillow.
A decorative pocket on the back of the quilt contains the folded quilt, which then becomes a QUILLOW!
Take one corner of each end on a long side of the quilt/quillow. Fold over 1/3 of quilt/quillow lengthwise.
Take two corners of other side, fold over 1/3 of quilt/quillow lengthwise.
Take bottom end (end opposite of pocket on back) and fold up 1/4.
Take bottom end and fold up another 1/4.
Take bottom end and fold up to the last 1/4. This should give you a stacked square.
With one hand - hold folded stack in place, while reaching into pocket on bottom of folded square with other hand.
With hand which is inside pocket, pull an inside corner outward, turning folded stack into the pocket. This step takes a little effort, and looks a little wonky, but it works.
Pull other inside corner out, and adjust pocket to hold quillow in pillow fashion. (It's kind of like turning your socks to make them compact.)