I use this technique to cat nap during the day and it works every single time. It's when your mind lands on a thought and follows that thought through a series of mental movies that causes stress and ultimately keeps you awake. It was so unfortunate my search ended up in the cold.
If there is no hearing loss along with the ringing, the audiologist can still help you to understand the synapse xt better. They fall over, they hurt themselves, and they freak out if they see their blood. How long will it be before the message goes out loud and clear? In fact we were able to make the little adjustments as synapse xt treatment. If you were distracted though, you would most probably forget the discomfort because your brain is trained to ignore pain if it can.