Some of the first 100% natural latex mattresses sold in the US were sold by Sears in the early 1950s. While Sears no longer sells them, many of their customers reportedly still had them 30+ years later, looking as good as they did when they first bought them. 100% natural latex mattresses are very durable and should last 20-25 years, although it's typically recommended to replace your mattress every 8-10 years.