I can’t help you beyond googling it. It’s just another example of the fragmented system of sustainability. Tell Zinus that it’s not an available option in NJ and to Please honor their refund policy. Unless, there is something in the fine print that covers this, they should be able to do that. I brought this sort of topic up at a recent meeting on extended producer responsibility (EPR). While this tends to focus on plastics, it happens in many other product lines, such as mattresses. There is no National system that facilitates the collection and repurposing of products that exists in every state. Zinus, needs to be called out in this.