How long will the Duvet Cover last? February 13, 2021 20:13 Updated With normal use and regular washing the Duvet Cover will maintain its soft, durable feel for 5 years or more. Related articles How can I wash my Duvet Cover? What is the Duvet Cover made from? Is the Duvet Cover included with the purchase of a Duvet Insert? Does the Duvet insert sleep warm? Does the Duvet insert work with any Duvet cover?