SleepBetter Perfect Elegance Memory Foam Pillow Hypoallergenic bed pillow filled with millions of tiny polyester cluster fibers Slowly conforms to your head's curves by adjusting to your body weight and temperature Resilient memory foam ensures proper shoulder and spine alignment and keeps you comfortable Ideal alternative for people allergic to down pillows; uses technology developed by NASA scientists Removable, zippered cover is machine-washable and dryer-safe for easy care