I work on a m/b unit and I understand they may increase our patients to 5 couplets...we are now at 4! Sometimes 5. We are primarily a cs unit, I am guessing about the same percentage as your unit. You know how it is trying to make people happy and give good care to 8 pts. let alone 9-10! Our ratings went down and I am sure if we take on another couplet it will go down again. I don't have to tell you what can happen and how fast it can go downhill...a baby goes bad, pp hemorrage or something. Mother/baby is nothing like CCU,ICU,MSURG,or the ER, but it is exhausting. Those new mom hormones with mine are crazy!