@gbreault, Are you doing 3 12’s in a row? If so then I’d do a hard workout on the day you start your block of shifts. Maybe on the days you are working throw an easy black or Baxter in there, or something short and hard like bear creek. Then get back to business on your off days.
I’ve been living the critical care lifestyle (nights and days) for 10+ years. It ain’t easy to beat your buddies and do that kind of work.