I guess this explains why my scheduled 8:40 AM PBI-ATL flight was pushed back to 11:47AM this morning due to 'crew rest'. I did get the 6AM wake-up call from Delta informing me of the change and allowing some extra time at home with the family.

I have to admit Delta are excellent at informing passengers of delays before they leave for the airport (with the exception of the 3AM phone call a couple of months ago!)