A pillow made with urethane foam can come in a variety of shapes and sizes. This makes urethane foam suitable material for therapy pillows or firm pillows with shapes that provide support for other body parts.
While you can freshen feather pillows by laying them in the sunshine, don’t do this with urethane-foam pillows, as they are combustible. Keep your pillows fresher by placing each one in two pillowcases. Choose a zipper pillow case for the first one and a slip-on case for the second. Wash the slip-on pillowcase each time you wash your bed sheets.
Unless your urethane-foam pillows come with conflicting wash instructions, spot wash by hand. Begin by removing all the pillow covers to wash separately. Spot wash the pillows using warm, soapy water, using mild detergent. Rinse well. Press a dry towel against the spots to absorb excess moisture.
Don’t be tempted to toss urethane-foam pillows in the dryer. This is very dangerous, as it can start a fire. You also don’t want to place the pillows in the direct sunshine to dry, as that can also cause a fire. Instead, lay the pillows on a flat surface and dry at room temperature in a well-ventilated area. It will take several days for the pillows to dry, and you need to turn them periodically during the drying process.