The lifespan of duvets and pillows varies depending on the fill, how regularly their used and how they're cared for. However, it is generally recommended to replace pillows every 1-2 years and duvets every 5-10 years. Over time, pillows lose their shape and support, and duvets can lose their loft and insulation properties. Regularly assessing their condition and replacing them as needed ensures optimal comfort and hygiene. You can read more about caring for your filled bedding right here.