King Koil (King Koil) is the world's top bedding brand, but also the world's high-end sleep product brand, is the ICA (International Chiropractic Association) the world's only certified mattress brand, known by the medical profession as "truly beneficial to spinal health of the mattress It is also the world's high-end sleep product brand. The company was founded in 1898 and developed the world's first healthy mattress that replicates the characteristics of the human spine.