Hi Trailblazr80,
I just realized that you were also asking about “chemicals” and there is more information in post #2 here and the more detailed posts and information it links to about safe, natural, organic, “chemical free”, and “green” mattresses and mattress materials that can help you sort through some of the marketing information and terminology that you will encounter in the industry and can help you differentiate between them and answer “how natural is natural enough for me” or “how safe is safe enough for me” so you can make more “fact based” choices on the types of materials and components you are most comfortable having in your mattress. These types of issues can be complex and are generally specific to each person and their individual sensitivities, circumstances, criteria, beliefs, and lifestyle choices.
Phoenix