Hi, I think all shifts have their advantages and disadvantages. I work M-F, 11-7. The advantages are that I can sleep while kids are in school and can make Dr. appts etc when needed and go to school events during the day. The disadvantage is you either sleep most of your Saturday away and start feeling human again on Sunday, or try to stay up and sleep "normally" over the weekend which can really mess up your hours. I think 5, 8 hr shifts in a row is a little too much and 4 would be better. I have worked 12 hr nights and really enjoyed that because we were off as much as we were on, got plenty of rest and things seemed to run a lot smoother with all shifts. In addition we didn't have as many "call-ins" then as we seem to now.