I'm in tears right now - so tired and frustrated with the minister that we've created. My girls are still waking every 2-3 hrs to eat at nite and naps are often hellacious and out of sync. I adore them and am only home PT with them now that I'm back to work 3 days/week, but I get so frustrated with the struggles to get them down at nap time!
At nite, they are still in RnPs by our bed. At DC, they are rocked to sleep and then sleep in a PnP and at home, for naps, they sleep in a swing and bouncer. I know it's too many different routines, but I am not in favor of CIO and I cannot rock them to sleep for every nap like at DC. At nite, they go down easily in their RnPs, it's just the frequent (I guess normal?) waking that's tough.
Advice? TIA!
Natural m/c Oct. 2005
Dx: balanced translocation and LPD
TTC since Oct 2011
BPF 02/19/12, EDD 10/31/12, natural m/c 02/28/12 (4w6d)
IVF (BCPs starting 10/30/12, ER 11/18/12, 5dt of 1 beautiful, healthy embryo 11/23/12)
BFP 12/02/12, u/s @ 6w,5d showed 2 HBs! Identical twins!!
Bed rest from 21w-35w due to short cervix, hospital bed rest from 23w-32w due to PTL
Our rainbows were born 07/19/13 (36w, 5d)

Re: Advice needed re sleep
You can try to do naps in the RNPs. Draw the curtains and do whatever the normal bedtime routine is. That might help.
Alternately, what's the plan for when they're older? A regular crib is more similar to a PNP than the RNP is and that might make things more consistent to have naps always in some sort of crib thing.
I'd probably also talk to the DC about their routine there, because it doesn't sound like it's helping your cause. See if there are specific times the DC puts them down, and try to keep their nap times consistent. If it's louder at DC when they nap and that's what they're used to (or do better with), you may have to add some background noise at home at nap time to make them more comfortable. I'd also definitely see if they can stop the rocking to sleep at nap time. You just can't do that with 2 at home, and you don't want them getting used to something you simply can't do all the time at hone. Even if they hold their hands or stand by the crib for a bit for now, that's easier than rocking!
Consistent routines and place for naps as pp said is also helpful. Let the DC work with you to all get on one page.
About DC I'd suggest to talk to them. That seems to be one reason why they're having a hard time napping at home. Like the previous 2 posts said talk to them and tell them how you want things to be done. You're paying them a good amount of money.
Another thing is don't keep them up for long. My twins usually nap after every 2-3 hours. I watch them closely when they show signs of tiredness and seem sleepy. They either yawn or make sounds or rub their eyes or just end up resting their head on my shoulder when they're sleepy. I keep a track of their feedings and nap time.
I don't know how old your babies are, so I adviced you as per my experience. HTH! All the best and this too will pass.
TTC #2 since July 2010
March 2012 IVF (MDL Protocol) Started stims 3/3; ER 3/11 (9R, 8M, 7F) ET 3/16 (5dt of 2 blasts graded 3AB and 3BA, 3 frosties(!!) Beta 3/26 = 386; Beta 3/28 = 827; u/s 4/11 says TWINS! Boy/Girl Twins delivered at 36 weeks 6 days
Do they cluster feed at night or have one really long nursing session before bed?
3/22 ER: 25R, 20M, 15F. 9 genetically normal, and 3 survived to Day 5
3/27 ET: transferred 1 embryo, beta 9dp5dt=163, 12dp5dt=639
4/25 1st ultrasound at 7 weeks = identical twins with heartbeats?!!!
I can't sleep when they sleep because they are cat nappers and have different sleep needs so even if they go down at the same time, they wake up staggered.
And @purpleiris30, they neither cluster feed or do a long feed before bed
Dx: balanced translocation and LPD
TTC since Oct 2011
BPF 02/19/12, EDD 10/31/12, natural m/c 02/28/12 (4w6d)
IVF (BCPs starting 10/30/12, ER 11/18/12, 5dt of 1 beautiful, healthy embryo 11/23/12)
BFP 12/02/12, u/s @ 6w,5d showed 2 HBs! Identical twins!!
Bed rest from 21w-35w due to short cervix, hospital bed rest from 23w-32w due to PTL
Our rainbows were born 07/19/13 (36w, 5d)
Another couple things to keep in mind:
1. Are the babies waking up happy from their catnaps or are they fussy? If the latter, they aren't really ready to wake up. A lot of babies struggle to transition between sleep cycles and will wake up around the 45-minute mark. This happened to my LOs a LOT between 4 and 6 months (sucked). My rule, though, was: if they were awake and crying, or if it's been less than an hour that they slept, naptime wasn't over. For awhile, I would soothe them back to sleep (sometimes successfully, sometimes not). I often ended up walking crying babies in a dark bathroom w/ the fan going....but there was no "getting up" until an hour and a half had passed. Eventually, when the walking wasn't working, I would just pat their backs until they settled down.....eventually going in the room at all would get them more worked up, so they had to do a little fussing before falling back asleep. But being consistent paid off, and they are now excellent sleepers (for the most part).
2. Like @pillowass said, sleep training can be a God-send for both parents and babies. I personally hate the term CIO b/c it paints a picture of leaving a sobbing baby alone for hours with no discernment about what's going on. Of course no one should do that. But sometimes babies need to fuss for a few minutes before settling down....as long as they're fed, warm, have a clean diaper, etc. there's nothing wrong....crying in and of itself won't hurt them. Naturally you'll use your mommy-instinct and listen for sounds of pain, hunger, etc....but if they're just crying b/c they're tired (or mad b/c they don't want to sleep lol), letting them learn how to fall asleep on their own is the best thing you can do. I haven't read Ferber's book myself, but a lot of parents swear by it, so it might be worth a shot.
GL! I'm sorry you're going through this, and hope it gets better soon!
FWIW - I think it's time to transistion them to cribs or whatever you plan to do for the next stage. They are going to be too big for the RNPs in very short order. Especially if they are rolling, they will not be happy to be stuck in a single position. This actually might be why they keep waking up overnight if they aren't hungry.
That said - I had issues with naps too prior to 5 months or so because I let them just nap where they were until then (floor, swing, rocker, whatever). They'd never get good naps and wouldn't sleep through the night. Once I started putting them to nap in their cribs for the long afternoon nap (curtains drawn, in sleepsacks...identical to bedtime), they did so much better. They also started sleeping all the way through the night once I could get them to eat 6 oz bottles at a feeding. But treating at least the longest nap like bedtime should help a lot. They will recognize the routine as "it's time to sleep now" once they get used to it.
I'd also just put them down when you get those sleep signals (rubbing eyes is big in my house), without rocking as much as possible. I'd also try and get daycare to do the same. I love rocking my babies too, but it'll become an issue later. Rocking should be reserved for other purposes than sleep.
Oh and CIO - you don't have to go whole hog. I give myself 5 minutes. If they dont't settle in 5 miniutes, I will respond, or if they are panicked screaming, I'll respond right away. But they usually quiet down within that time frame, and rarely is it a panick cry.
ETA: When I was trying to get them nudged over into STTN all the way, I would offer them a short bottle to top them off right before sleeping (2-3 oz), especially if they hadn't eaten in a few hours. It did help, but I found the 6 oz mark to be the magic number for these girls. My son STTN at 2 months (parents so spoiled), so having the twins take months longer was tough!
TTC since May 2006. After 3 failed Clomid cycles, 2 failed Injectibles/IUIs, 2 failed IVFs and 1 failed FET, we moved on to adoption!
Last ditch FET resulted in BFP, and identical twin girls!