I work Postpartum (12+ at night), and LOVE it!
I oriented on days, but work nights. I love the nights - and not because it's easier - it's just different. The moms definitely don't sleep all night, so it's not a cake-walk.
We usually start with 5-6 patients, and can end up with 8+ if it's crazy and we're short nurses to begin with. Nights don't have discharges, food service coming & going, or the volume of visitors that days do. We do have visitors for about 4 hours, and then 1 "support person" can stay the night if they're in a private room or suite.
For assessments and patient teaching think BUBBLE - breasts, uterus, bowels, bladder, lochia and episiotomy. You'll do assessments (Uterus being your fundal checks) at least once a shift, and more often if their BP drops, blood flow increases, temp increases, etc. (signs of PP Hemoraghe, hematoma, puerperal infection). You'll need to assist with /educate moms on breastfeeding, hygiene, and breastcare for lactating and non-lactating moms. And....check PCE's (epidurals) and PCA's, get C-sec moms to TCDB Q2H & get out of bed to prevent DVT's, keep SCD's on moms who are "fresh" sections (also to prevent DVT's), give pain-meds, keep ice-packs (real or chemical depending on the doc) on the perineum, monitor IVF, take blood draws for CBC or Liver Panels or Coagulation Studies or Rhogam Workups or HIV repeat tests (and more that aren't thought of as OB type tests), put in or take out foleys (depending on the mom and what's going on with her), give suppositories for those moms who are worried crazy about their BM's!, give blood & blood products (including Rhogam), start moms back on their anti-depressants/mood stablizers (these patients are some of the most challenging!), call docs about potential problems, take care of a lot of domestic type situations, encourage moms with babies with dissabilites /malformaties/ disease, comfort moms whose babies died, and teach a lot of first time moms how to bond with/take care of their baby.
I'm sure I left something out - but I just got home from work & I should be sleeping. ha ha ha!
Sometimes I'm so busy I treat myself to a bathroom break, but I feel so blessed to work in my unit. I work in a very supportive hospital, with great staff, and I love my specialty. I'm truly blessed to work where I do. I'm actually cross training in the Newborn Nursery this week, and it looks like that will be good, too! If you are at all interested I say find an internship at a large hospital - you'll learn a lot, get a lot of support/training, and will see a lot of things they told you are rare in Nursing school. I've already seen babies with oomphaceles, atresias, trisomy's, etc (something I never expected).
Good Luck & God Bless!