Good luck tomorrow! I know how hard it is to work a crazy schedule like that. When I worked at the vet school, our weekend shifts were 8am-4pm, 4pm -12am and 12am to 8am...and ya never knew which shift you'd end up with for that weekend. I found it easiest to adjust to the overnight shift by sleeping up until the time I went to work, then staying up a few hours after I got home from work. (LOL now that I confused myself and you

) Example...On Friday, try going to sleep soon after you get home from work at 5pm. Then on Saturday, try going back to bed at noon or 1, sleep your 8 hours or however much you need to function. That would put your wake up time at like 8pm- use the next couple hours to shower, eat, etc and then head to work at 10pm. When you get home at 7am, stay awake until you head back to bed around noon or 1 like you did Saturday afternoon. Does that make sense? Belive me, it's hard to change your sleep cycles that frequently. Good luck!