A warm sweater is read as comfort, protection and being cared for. Dream books link a hand-knitted one to love that took time, and a scratchy one to comfort that comes with conditions.
Has this come up in your dreams before? What was going on in your life then?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.