We can only work 16 hrs in 24 and then are mandated 8 hrs off. Also, we can only work 6 days in a row and must have 24 hrs off before coming in again. If we're called in and have to work for an on-call shift over night but are scheduled to work the next day it depends. If you're called in, say, early enough to hang around until your day shift starts, then you hang around and try to work, if you're needed, and then the charge nurse sends you home as soon as they can. If you come in closer to midnight, work a few hours, then go home at like 3 or 4am, we usually leave the charge nurse a note and they call and let you stay home and rest a few hours, and then either work less day shift hours or start your shift later and end it later. My unit is usually as flexible and accommodating as they can be without sacrificing patient safety. But we also have leadership that will and has worked at the bedside when asked, without any problems.