Cosima is made a great soft comfortable sofa by using loose feathers, downs and fiber on top of a thick layer of cold foam. These loose filling are held in place by sewing the interlining in canals. This top filling is very soft and it can be moved around by sitting in the sofa and it can change shape over time. In order to maintain the sofa it is important that you fluff the sofa regularly but it is still not possible to keep the shape. Cosima will be more rounded in shape over time and the seams will follow this more organic shape, due to the soft comfortable filling. This is not seen as a defect but just normal wear and soft look of the sofa.