1. Hold the pillow upright in one hand, perpendicular to the floor.
2. Strike the pillow with your other hand. Aim for the lumpy sections of feather clumps.
3. Rotate the pillow as you continue to strike the pillow, allowing the down to fill all the areas of the cushion.
4. Replace the cushion on the sofa. Smooth out the fabric with your hand for a uniform appearance.