What do they do with mattress that are returned?

Returned mattresses are typically cleaned and inspected before being resold, donated, or recycled. Some companies refurbish them to meet health and safety standards, while others may break them down into materials like foam, fabric, and metal for recycling. In cases where mattresses are too damaged or unsanitary, they may be disposed of responsibly. Ultimately, the handling of returned mattresses varies by retailer and local regulations.