Is this a pemanent shift or will you rotate. I rotate and about every "weekend" I wind up sleeping a night of 10 plus hours to get reoriented.

Just make sure if it is a fixed shift to have a routine for eating and sleeping. If you have to rotate you get used to functioning sleep deprived and have to watch what and how much you eat. Its real easy to gain weight if your rotating. the comments on caffine and such are great, but usually not followed. You just have to get to know your own body.

Take care, and stay safe.