The lifespan of pillows and duvets varies depending on their quality and how they are cared for. Below, we've put together some simple tips to keep your pillows and duvets in their best condition and extend their life: Shake your pillows and duvets daily to maintain the density and elasticity of the filling.Avoid vacuuming or beating your pillows and duvets , to prevent damage to the filling. If you use a blanket on the bed, the duvet and pillows may flatten over time as moisture can fill the voids of air. To maintain the quality of the filling, when you wash them, you can add a few tennis balls or washing balls to the machine. They will help to refresh and distribute the filling evenly.