I always reversed out for the reason/s you cite. The last night I took short naps and when I got home for my seven off I slept until noon, got up, got busy, tired myself out, went to bed @9PM, woke up next day all adjusted. Obviously the day prior to the first night shift I slept from 8AM to 4PM. It really did solve the problem of having to sleep when I got to night shift because if you wind up staying awake all night you are one dangerous decision maker when you get to @midnight. Best to reverse out.