aye but as long as i'm not working on carpet the wrist band on its own should suffice right?
Some plastic laminate tabletops can be a bit touchy as well. I have used ordinary bath towels on table tops mainly to keep from scratching the tables. As long as you are not doing anything to generate static, you'll be fine.
If the Anti-static mat is properly grounded, it's better to use that when dealing with boards that may store a lot of charge, aka a power supply. You don't want to be a part of the path when their caps suddenly discharge.