Question: what size is a double duvet?
Answer: Full or double size duvets measuring 84 inches by 90 inches are compatible with double beds up to 15 inches tall. But full size duvets have a vast range. They can be between 80 inches by 89 inches to 90 inches by 94 inches. Some brands market their duvets measuring 88 inches by 90 inches as queen duvets.