In Babywise, the majority of the information on sleeping through the night is discussed in Chapters 6 and 7. However, I could've used an entire book about this one thing.
I'm going to explain step by step exactly how sleeping through the night happened for us. This may or may not work for you, but hopefully it will help those of you who need some sort of an outline for the whole process.
First, the eat/wake/sleep pattern needs to be in place. Routine first makes a schedule happen later.
Weeks 1-4, feed when your baby indicates. Don't stress out about a strict schedule, but do aim for every 2.5-3 hours. If your baby is sleeping and it would make him go past the 3 hour mark, wake your baby to feed. Once you get to the night time, continue operating like this. From what I read and was told, you don't want your baby sleeping more than 4-5 hours at a time those first 4 weeks. At this age, Duke never went longer than that on his own. He had no problem letting me know when he wanted to eat at night. :)
After week 4 things can change a bit. Let your baby go longer at night and implement a
consistent waketime. During the day, continue your normal feeding pattern until your desired bedtime. At that point, just see what your baby does. But no matter when he eats during the night, wake him up at the same time each morning for his first feeding.
This is where some confusion can set in, so I'd like to address it. You want to be realistic. Your baby is not going to be sleeping 10-12 hours straight with no feedings for a few months. So don't put him to bed at your desired 10-12 hour sleep time. If you want your baby to sleep 8:00 p.m. to 8:00 a.m., that's great. But I wouldn't suggest operating like that in the beginning. (Again, this is what worked for us. It may not work for you.)
Here's what I suggest: Start with your morning feeding, whatever it is, and work backwards. Remember, you want consecutive hours of sleep. Our first morning feeding was 8:00 a.m. Thinking realistically, the first long stretch your baby does will probably be 5-6 hours. (This may be around 5-6 weeks.) I want that stretch to be during the night, when I'm sleeping. For example, I'd rather my baby sleep from 2:00 a.m.-8:00 a.m. than 10:00 p.m.-4:00 a.m. (Now, this doesn't mean you're staying up until 2:00 a.m. Just keep reading.)
In order to get to this point, keep your 3 hour feeding schedule during the day until maybe 11:00 p.m. Then,
see what he does. Here's an example of what may happen at first
during an average 24 hour period:
8:00 a.m. Feed
11:00 a.m. Feed
2:00 p.m. Feed
5:00 p.m. Feed
8:00 p.m. Feed
11:00 p.m. Feed
3:00 a.m. Feed (he probably wakes you)
7:00 a.m. Feed (he probably wakes you)
8:00 a.m. Wake him and feed
Yes, that 7:00 a.m. feeding backed up to the 8:00 a.m. feeding will drive you
nuts. But within days, he will probably realize he doesn't need the 7:00
a.m. So after awhile, he may do this:
8:00 a.m. Feed
11:00 a.m. Feed
2:00 p.m. Feed
5:00 p.m. Feed
8:00 p.m. Feed
11:00 p.m. Feed
3:30 a.m. Feed (he probably wakes you)
8:00 a.m. Wake him and feed
You're getting there. You've got a late night feeding and a
middle-of-the-night feeding. Your next goal is to get rid of the 3:00 a.m. feeding.
But that would leave you with feeding at 11:00 p.m. and then 8:00 p.m.. That's 9 hours
between feedings and probably not a realistic goal. Remember, baby may only be 6-7 weeks at this point.
What I did was
cram in another feeding that would make it 2 hours between feedings in the evening. And that's totally fine. (Babywise, Pages 115-116) Don't worry about
the "cluster feeding" debate. We had to do a phase of cluster feeding
(6:00 p.m., 8:00 p.m., 10:00 p.m.) with Duke later on because of his spitting up. It was totally not a big
deal to move it back to a normal evening schedule when he was ready. So you may try this:
8:00 a.m. Feed
11:00 a.m. Feed
2:00 p.m. Feed
5:00 p.m. Feed
8:00 p.m. Feed
10:00 p.m. Feed
12:00 a.m. Feed
8:00 a.m. Wake him and feed
The first few times you try it, he still may wake in the night to eat. That's fine, but soon enough, he'll catch on. Sleeping after the 12:00 a.m. feeding to the 8:00 a.m. feeding is definitely feasible. Your baby will most likely achieve this around weeks 7-9. (Babywise, Pages 114, 132) And this way, you're still getting 7 feeding periods in your day. So, work on perfecting
that schedule. Watch your baby's cues.
Was he really ready to go 8 hours at night between feedings? Is he still gaining weight well?
Once you notice he's doing well with that amount and
you can tell he's ready to drop that 12:00 a.m. feeding, start moving the 12:00 a.m.
backwards - 11:50 p.m., 11:45 p.m., etc. (This may be around 2-3 months.) Get it to where it's too close to the 10:00 p.m.
to keep doing it. Then, drop it! In response to that, you may want to
move the 10:00 p.m. a bit later too. Aim for this:
8:00 a.m. Feed
11:00 a.m. Feed
2:00 p.m. Feed
5:00 p.m. Feed
8:00 p.m. Feed
11:00 p.m. Feed
8:00 a.m. Wake him and feed
If he nurses for 30 minutes and you put him down, that gives him about 8.5 hours of sleep. My next suggestion would be to stick with 6
feedings for awhile. You don't want to drop to 5 feedings too early, even though you really want to. (And, in my case, you certainly don't want to if your baby has severe acid reflux.) Make sure
your baby is ready for that. So, if you stick with 6 feedings, but you want to increase sleep time, move your
schedule around. Try this:
8:00 a.m. Feed
11:00 a.m. Feed
2:00 p.m. Feed
5:00 p.m. Feed
8:00 p.m. Feed
10:30 p.m. Feed
8:00 a.m. Wake him and feed
Remember, there's
nothing wrong with making those last 2 feedings closer together. (Babywise, Pages 115-116)
Think your baby is ready for more sleep? Definitely make sure these things are happening:
1. You're having to wake him up every
morning at 8:00 a.m. (or whatever your morning waketime is) consistently for weeks.
2. Naps are going well.
3. Baby is gaining weight appropriately.
If those are true for you, that's probably a good sign he's ready for more night sleep. Try moving the 10:30 p.m. feeding earlier. Move by 5-10 minute
increments. Try doing that last feeding at 10:00 p.m. instead of 10:30 p.m.
(P.S. I explain
here why I chose the schedule I did in the beginning.)
So, from there it's pretty much under control. All you're doing is
adding more hours into your baby's night sleep as he shows that he's
ready.
Once your baby is ready for 5 feedings, drop that 6th
feeding the same way that you dropped the 7th.
Just don't rush it. In Duke's case, he wasn't ready for 5
feedings until 6 months. It's easy to remember: 6 feedings until 6 months.
Whew! That was quite a post. It took me forever to write and it probably took you forever to read. But if it helps someone, it was worth it. And, as usual, feel free to ask questions about any of it. Getting your baby to sleep through the night is one of the most glorious things ever!
{EDIT: My second child, Nova, transitioned into a full night of sleep in a totally different way than my son. If you're interested in reading about how she started sleeping through the night, read this post.}