Good size for adults. Since the memory foam is very soft and compressible, this is a very good quality pillow for those who have had conformity issues with a standard memory foam pillow or other type of contoured pillow. It essentially compresses into a standard-type pillow while still maintaining good ergonomic support underneath. It's an excellent first-time neck pillow with little to no break-in period. Machine-washable pillowcase: Available in two heights, the ergonomic memory foam pillow conforms to the contours of your head, neck, and shoulders to relieve pain and promote deep, healthy sleep. Neck and shoulder pain relief pillow: The contour pillow is customized to fit the physiological curve of the body, providing comfortable support and cervical curvature. With the personalized 5S Slow Rebound Memory Foam: The neck pillow automatically molds when firmly pressed and rebounds in 5 seconds when no pressure is applied, maintaining its shape year-round. The coolest memory foam neck pillow combines an anatomical design, soft foam, and a cooling gel surface. The combination of memory foam and a high-quality, soft, breathable, removable, machine-washable, and skin-friendly double-layer pillowcase means superior performance and comfort. The soft, breathable, and cooling fabric keeps you cool all night long and provides a comfortable sleep.