Well, I've worked nite shift for a bit over 30 yrs----however, most of the time, I work 11PM to 0730. We do mostly 8 hr shifts now.
In the past, I have done a few 12 hr shifts, mostly on weekend.
Currently, I work 72 hrs every 2 weeks. I get home about 0800. I don't go to bed until about 3:30 or 4PM then sleep until 9:30. My DH is retired now, so we do all kind of stuff during the day.
In years past, tho, I worked 80 hrs per 2 weeks; plus, I used to work Home Health after I got off duty at the Hospital. I did that for about 10 yrs & just stopped that about a year ago.
When I did the 12 hr shifts, I was MUCH more tired then I am with 8 hrs. Possibly because I did not do it regularly. I don't know.
However, after bilateral hip replacement surgeries, my hips rebelled & I really can't do more then a shift at a time. Oh, I suppose I could do more if I put my mind to it, but we have a choice of either 8 or 10 hrs where I work.
We're really lucky.
Now, I have not always had this pattern of sleeping; I have changed at intervals.
When I am off, I don't go to sleep at all until that nite, so I sleep thru the nite with the rest of the family. Then, I go back to bed again at about 5 PM.
For a time, I slept when I got home, but that just didn't work well for me.
I will tell you, that I absolutely MUST have some sleep before I go to work.
You'll find a pattern for yourself.
We each have our own. I know it's more difficult with children.
I hope you enjoy the nite shift; I think it's a great shift to work.