How long does it take for foam to decompose?

Foam, particularly types like polyurethane and polystyrene, can take hundreds to thousands of years to decompose in the environment. Factors such as exposure to sunlight, moisture, and temperature can affect the degradation process, but generally, foam is resistant to natural breakdown. As a result, it can contribute significantly to long-term environmental pollution. Recycling and proper disposal are essential for mitigating its ecological impact.