Duo duvet made of siliconised hollow fibre Ecolofil with a soft feel similar to down, consisting of two fillings (150 g + 300 g) for year-round use. They are two different duvets that can be used by attaching them by means of brackets or individually: 150g, 300g, or 450g together, depending on the need for a coat. It has an easy snap fastening system for combination in DUO form. It is easy to maintain as it can be machine washed and tumble dried on a low heat. It is advisable to wash it with several tennis balls so that its filling does not clump. These are two duvets that can be used in three ways: 150g for hot rooms, spring/summer and homes with central heating; 300g for rooms with medium and cold temperatures or for autumn/winter; combining both with 450g for the coldest nights of winter.