Needananswer is correct in that pred is best taken in one dose, between the hours of 6 and 8 am. I've been on pred for a lot of years, and I found that even high dose would still allow me to nap during the day (I was really sick back then) but I had trouble with nighttime sleep. My body just seemed to work itself into overdrive the closer it got to bedtime. This would be ideal for you, mpage, since you need the energy during the night.

Good luck!