The following fun tidbit is from the CozyPure® website and catalog:
It is said that an Indian woman once stumbled across a tree that had white teardrops. She believed that the tree was crying — but we know today that those tears were simply the natural sap seeping from the bark of the Rubber Tree. Early civilizations found many uses from the rubber sap, making waterproof clothing and shoes, and even little balls that would bounce, to provide hours of entertainment. Today, we’ve learned how to harness the natural properties of the rubber tree and create wonderful sleeping surfaces that are comfortable, durable, and naturally safe.