Cotton in a dream can represent a difficult situation.
If you receive bloodstained cotton, it can be a sign that you are expecting important news.
Cotton in a package may represent a secret.
Loose cotton can be a warning from your unconscious that you might lose something that is important to you if you aren’t careful.
Using cotton to polish something in a dream can be a warning that you are getting yourself into a dangerous situation.
If you’re cleaning yourself with cotton, you could be feeling very tired in waking life.