Since i wasn't around when SA got released i realized a couple weeks ago that you can accept a quest in Ter Mur called "Shearing Knowledge" from an NPC named "Laifem". That quest is used to get access to the carpets. When you leave that quest open you get 2 wool per sheep. One is the regular white the other is some dark grey. The new wool is called "Britannian Wool" and works like any other wool. If that is commong knowledge iam sorry for the post.