Hi Wrewster,
You can see some comments about Plushbeds in post #2 here.
Greenguard Gold is a safety testing standard that tests for harmful VOC’s. Two other testing protocols include Oeko-Tex and Eco-Institut which also test for harmful VOC’s and also for harmful substances that can leach out of a material. There is a little more about Oeko-Tex, Eco-Institut, and Greenguard Gold and other certifications in post #2 here.
Phoenix