What is the different between your dream asleep and your dream awake?

some people belive that one cannot differentiate between dream awake and dream asleep but as a phylosopher, things done when asleep are imperfect while thing done when awake are perfect. Few days ago, i was reading an anonymous comment on the net there, the writer sited an instance that in his dream asleep, he was dialing a number and he missed out one, while in his dream awake, he dialed the numbers correctly.