Re: Side effect of Prednisone/
How high have your blood sugars been running? And have you tested for ketones?
I suspect the nighttime urinary "incontinence" might be a result of extremely high blood sugar levels, thus increasing the urine output. If you're in a very deep sleep, you may not feel the urge and so are not waking up in time.
Are you on insulin? If not, you may need some supplementary insulin during prednisone treatment. If you are, you will probably need to increase your basal insulin by at least 25-30% during the prednisone treatment and for several days to a week after you stop the prednisone.