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The Shiki Futon mattress features a 5-inch USDA Certified Organic Cotton fill in an extra long double size, designed to deliver firm, even support when used with a traditional tatami mat. The organic cotton construction is naturally breathable, preventing heat buildup while offering reliable insulation during cooler conditions. Its non-irritating fiber surface and temperature-regulating properties make it a practical choice for year-round use. The renewable and biodegradable cotton fill is built to retain its structure and firmness with appropriate long-term care.
