micro, the human body is really quite amazing. Different folks react differently to different things. I have had sinus problems all my life. I learned at a young age that my body adjusts quickly to medications. So if my sinus problem gets bad enough I will take something for it. But what works this time will not work next time. I rotate through them. That being said, I can see how your wife can be adjusting to her medication. Maybe her body will continue to benefit from the pain killing part and be less affected by the sleeping part. It sounds like she is improving and I hope that one day soon she will be able to get off the medication altogether.
BTW another game to occupy your mind for a few minutes; game #32252. It took me over twenty minutes. But then, I am getting old and everybody knows I am stupid.