I just got a 9week old cockapoo. He plays a little bit but most of the time seems tired... is this normal for such a young pup? I thought puppies were full of energy, he does not have any other signs of being sick no vomiting or coughing or anything of that nature.

Although they are usually active, they do crash and nap frequently. As long as he shows no digestive upsets, I wouldn't rush him to the vet. Did you get a shot record? If so note when the last shot was, DLCPP? and call the vet and see when they would like the next.