Do you have focal dystonia symptoms 24/7? Mostly likely not. It probably appears only when you try to carry specific tasks. Unless your focal dystonia have developed into a severe case where you can feel your symptoms over the whole course of your sleep cycle (I not even sure if there is such case...) the symptoms should only appear as a response to certain stimuli. It is much like having a switch to turn your focal dystonia symptoms ON and OFF. They come "ON" with stimuli