Overdosing on sleeping pills, as nottrustin pointed out, can cause you to not sleep at all. Can you switch which sleeping pills you use? That might help. Or try something natural, like melatonin?

And just because you feel fine doesn't mean some serious damage to your kidneys or liver didn't occur. Sometimes it takes several days for the effects to appear.

I would be honest with your T and tell him/her that you are having serious troubles sleeping to the point that you're OD'ing on your sleeping pills. Maybe they can suggest something.