MIMBIOSIS revolutionizes the construction industry by transforming textile waste into carbon-negative panels partnering with nature's ultimate technology, mycelium. We leverage the extraordinary potential of mycelium, the fungal root system, as a groundbreaking biotechnological solution for industries using plastic foam. By cultivating mycelium with textile waste, we produce carbon-negative and biodegradable materials with exceptional acoustic and thermal insulation, flame retardancy, hydrophobicity, and impact resistance. This innovative approach not only addresses critical issues of textile waste that plague the planet but also offers the plastic reliant industries a sustainable alternative to traditional plastic foams.