last week i had a similar task... in a quick sketch for a shop i had to visualise a upholstered piece of furniture, of course with curves. i decided to use a picture as the texture, since it was only shown half in the picture and it was just one small detail. worked out well in the picture. unfortunately i cannot show the full picture due NDA, but i guess it is safe to show the furniture.
do not look to close at the far upper left corner, there is something going on with the texture