There are plenty of articles supporting couplet care in AHWHONN's JOGYNN magazine and others. It does work.
We do check on them frequently (about every 2 hours) w/o disturbing them, just looking in. I do all my vital sign checking etc, when babies are awake, encouraging parents to call me when infants awaken so I can weigh, do PKU, footprints without waking them up just for these things.
Moms and dads are shown the warning signs and how to rescue any choking as well as bulb syringe use. Babies are sometimes brought out if they are extremely fussy and moms extremely exhausted, we try to help out. But when they are admitted, moms and dads are given a "welcome to the unit" information sheet, which they sign, and in there is a statement of our couplet care policy. They are encouraged to control visitors all day so when babies DO sleep, so do they. If they are shy about it, we are happy to help out here. We want them to rest as much as they would like to.
Babies are in general to stay with their mom/dad 24/7 unless there is a specific reason they cannot (e.g. mom is sick, on magnesium sulfate, or baby is sick, or is recovering from surgery). We simply cannot promise anyone we can watch well babies all night long, as we have no wellbaby nursery. Well babies belong with their families, not staff.
Breastfeeding and bonding are better supported when babies stay with their moms, not with nursery staff. Moms need to learn pretty darn quickly how to respond to various infant cues for feeding, attention, diapering, etc and can hardly do this with the baby in the nursery half the time. And if/when we do have sick infants in the nursery, yes, the nursery nurse CAN watch the well ones, but NOT all night. Again, this does nothing to foster bonding and learning infant care on the parts of the parents/caregivers. When we have kept babies in the past in the nursery all night and the first thing in the morning, the ped's demand to know WHY ------even THEY don't like it. It's unrealistic to think you can just send off your baby to be "watched" all night and succeed at all at breastfeeding or learning to care for him/her while you in the hospital. Our rooms are designed privately and are generous in size, so fathers/others are ENCOURAGED to spend the night, helping mom out and bonding with their babies as well. Since more than 90% of the moms we admit request breastfeeding, it behooves them to have the baby with them all the time so they can learn this in the short time they are with us.
I hope this helps clear it up. It works well where I work, but then LDRP is NOT a new concept there, either, having been in place for some 14 years. I hope you can get it going there, too. It really IS great once all the staff and parents are on board with you! Good luck! I would not want to work any other way. It's great!