Vision: Wrapping a blanket around yourself means you’re afraid of your enemies; but it is also a warning to be less open toward others. Looking at one or more blankets: company is coming. Sometimes the image of a blanket might announce a new member of the family on the way. See Wool.
Depth Psychology: What are you hiding from yourself or others? What are you ashamed of? WTio do you wish would keep you warm? What would you really like to “cover up”?