Legal Question in Criminal Law in California

It is impossible to commit a crime while you are unconscious. See People v. Newton. The attorney you retain will be best able to present an unconsciousness defense.

Mr. Stone's answer is correct as far as it goes. But if you participated in some sort of plan that ended up bringing stolen goods to your home, the mere fact that you were asleep when they arrived would not shield you. You could still be prosecuted for what you did when you were awake.