Sofzsleep uses only 100% latex in our mattress. It is like sleeping on millions of interconnected “micro springs” that provide exceptional, contouring support and pressure relieving comfort. Sleeping on a Sofzsleep bedding will leave you feeling rejuvenated. The latex core does not contain any other parts (metal springs, foams or other inserts). There is no risk of getting irradiated from the metallic springs. Our customers can easily open up the cover to see for themselves with our very special removable Bamboo and Coolmax covers.