How often should you replace a yoga mat?

Most yoga mats last 1 3 years with regular practice (3 5 times per week). Signs it is time to replace: the surface is visibly worn or smooth in high use areas, the mat is thinning and you can feel the floor through it, or it no longer lays flat and curls at the edges. Higher end mats from brands like Manduka can last 5 10 years. Cleaning your mat regularly and storing it rolled (not folded) extends its life significantly.