The Big Fig Mattress is built to last and support a plus size figure for many years, more years than a traditionally built mattress would last. General industry recommendations are to replace your mattress every eight to ten years. Your Big Fig Mattress can be expected to exceed this recommendation, but this could depend on how the mattress feels to you and how it may have been used. For example, if you have children that frequently use your bed as a trampoline (NOT recommended!), this could impair the longevity and feel of your mattress. The Big Fig comes with a 20 year warranty applicable to specific warrantable issues. Visit our Warranty page to learn more.