No other pillow can compare to the King size Purple Harmony Low-Profile Pillow – because no other pillow features the same level of sophisticated engineering and innovation. Using the same cushioning technology developed for our mattresses, the Purple Harmony Pillow features a layer of honeycomb-patterned Purple Grid® Hex surrounding a supportive inner core of hypoallergenic ventilated latex. Wrapped in a moisture-wicking, breathable mesh material, the no-pressure, supportive combo offers cool comfort all night long and never falls flat. (We're not lying when we say it's the Greatest Pillow Ever Invented!)