Hi JTT,
While their mattresses use good quality and “safe” materials (100% natural Dunlop) … they are certainly not the only “safe” or “chemical free” mattresses available and a prescription is not the only way to get a so called “chemical free” mattress. I would be very cautious about what you believe without doing some “fact checking” because some of the information on their videos is inaccurate and somewhat misleading. You can read more about Sleep Essentials in post #2 here and the other posts and search results it links to.
Phoenix