I'm fortunate that, as a nurse practitioner, my employer allows me to split night, evening, and day shifts. Switching sleep schedules isn't easy, but it's better than constant sleep deprivation. My friends always tell me that having a baby will be easy for me as I am "used to not sleeping". I sometimes think I would crush Navy Seal training, as I am accustomed to overnight physical activity, getting a few hours of sleep, and repeating several days in a row. While neither is probably the case, working the night shift is not for the whiners.