Hoho com Eco 3D Sleep Pillow cervical neck support reduces stress on your neck and head Promotes a more restful and restorative sleep ( Therapeutic Cervical Pillow / outer cover 100% cotton) Eco 3D Sleep Pillow cervical neck support reduces stress on your neck and head Promotes a more restful and restorative sleep size; Standard 23 X 12 X 4 inches Therapeutic Cervical Neck Pillow.Vacuum pack packing non-toxic materials -- The most ergonomic pillow on the market! filling; Polyurethane 90% Volcanic 10%. outer cover (100% cotton)