My mother/baby unit has the nursery open on night shift 2330-0630ish.. our postpartum (couplet care) nurses rotate being in the nursery. The limit is supposed to be 8 well-babies, but sometimes 9 or 10 if you've got a good group and breast-fed babies...
In the San Jose area, new grads start around 38-40 I believe. I have almost two years experience, and receive approximately 41.5 + 20% for per diem. Night shift differential at my facility is $6, I think 3-4 for evenings, and 1.5 for weekends.