A duvet is a type of bedding consisting of a soft, flat bag filled with down, feathers, wool, or a synthetic alternative, designed to be used as a blanket. Unlike traditional comforters, duvets are typically inserted into a removable cover, known as a duvet cover, which protects the fill and allows for easy washing and style changes. The fill material determines the duvet's key characteristics: down offers exceptional warmth-to-weight ratio and breathability, synthetic fills are hypoallergenic and often more affordable, while wool provides natural temperature regulation and moisture-wicking properties. The warmth level is measured in tog ratings, with lower togs (3-7) suitable for summer and higher togs (10.5-13.5) for winter. In application, a duvet simplifies bed-making by replacing multiple layers of sheets and blankets, providing efficient insulation without weight. For example, a couple might choose a king-size down duvet with a medium tog rating for year-round comfort in a temperate climate, ensuring both partners stay warm without overheating. The duvet's construction, such as baffle box or sewn-through channels, affects heat retention and prevents fill shifting. Baffle box designs create 3D walls that maximize loft and minimize cold spots, making them ideal for cold sleepers. When selecting a duvet, factors include fill type, tog rating, size, and ethical certifications like Responsible Down Standard (RDS) for down products. For guidance on choosing the perfect duvet for your needs and climate, we encourage you to contact our support team for detailed information.