We've designed it from the ground up to support our mattress and plus sized sleepers. It is simply built stronger and better than any foundation available. We utilize more wood, more and wider cross slats, greater center support, and exceptional block edge support. But the bottom line is it is engineered and built to last, and we back this up with test results and an unheard of 20 year warranty. Rest assured that it will provide the ideal support for your Big Fig Mattress for many years to come.