• Temperature-sensitive "memory foam" molds to the contours of your neck and head providing full support and ultimate comfort - continuously self-adjusts to relieve pressure points.
• Originally developed for NASA astronauts to provide superior sleeping/sitting surfaces during their long flights.
• Contoured shape gently supports your head and neck for more natural spinal alignment.
• Ring of Air promotes air circulation for a more comfortable sleeping surface.
• Pillow composed of hypoallergenic polyurethane foam.
• CA117 fire retardant.
• Machine washable pillow protector is 100% cotton with a nylon zipper.
• Limited warranty against manufacturer's defects.

Dimensions (WxDxH):

Approximately 21" x 16" x 4½"