Only on reading this thread have I learned that I am a very heavy sleeper. I've always taken for granted that low level noise is easy to sleep through. Now I fe

Only on reading this thread have I learned that I am a very heavy sleeper. I've always taken for granted that low level noise is easy to sleep through. Now I feel: 1. Bad that I've caused as much noise as I have at some times. 2. Very sorry for those of you that have to deal with easily disturbed sleep.