"Fiberfill" refers to a fluffy and lightweight material made of synthetic fibers that is commonly used for filling pillows, stuffed animals, or cushions. It provides a soft and cushion-y texture to these items. Full definition
Pillow is filled with virgin polyester fiberfill with a foam insert. (boppy.com)
Then, I hand stitched a little bell to the toe of the stocking, filled the pillow with fiberfill and stitched up the bottom of the pillow... (onekriegerchick.com)
If you like to bring along your own pillow when travelling, even during airplane trips, go for the Sound Oasis hypoallergenic polyester fiberfill pillow. (soundoasis.com)