A double duvet is a thermal insulating layer specifically sized for a double (full) bed, with standard dimensions typically around 200 cm x 200 cm or 86 inches by 86 inches. It is filled with insulating materials such as duck or goose down, feathers, wool, or synthetic fibers like polyester hollowfibre. The choice of fill determines the duvet's key characteristics: its warmth-to-weight ratio (measured in tog), its loft, its hypoallergenic properties, and its ability to manage moisture. The primary function is to provide efficient warmth without the need for multiple heavy blankets, simplifying the bed-making process and enhancing sleep comfort. The application caters to single sleepers in a double bed or couples who prefer a cozy sleep setup. However, for two sleepers, a double duvet may be narrower than ideal, potentially leading to covering gaps. A common solution is to use a larger queen duvet on a double bed for extra coverage. A typical scenario involves selecting a double duvet with a medium tog rating (10.5-13.5) for all-season use in a temperate climate, providing adequate warmth for most of the year. The duvet's construction, whether sewn-through or baffle box, affects heat retention and durability. For guidance on selecting the ideal double duvet based on fill type, tog rating, and construction, we recommend contacting our customer service for personalized advice.