Cleaning pillows with baking soda is an easy and effective way to freshen and deodorize your pillows. Begin by sprinkling baking soda over the pillow, then using a soft brush to work it into the fabric. Allow it to sit for about 20 minutes before vacuuming off any residual powder. Finally, wash the pillow according to the instructions on the tag. You should do this cleaning process once every few months to ensure your pillows stay fresh and clean!