I posted a similar thread recently, I also use the baby centre link as a guide, but my son has never got 14-16 hours sleep in a 24 hour period. He sleeps between 11 and 13.5 hours a day. This is his rough routine, and it can be more or less than this:
8.30pm bath then final feed and he usually settles down between 9 and 9.30pm.
He sleeps then for about 7 hours - until roughly 4/4.30am. I feed him and then he will sleep for another 3 hours and he wakes for the day around 8am
He has his first nap 90 minutes to 2 hours after waking (around 10am). I've just managed to get him to sleep in his cot, and I have to feed him to sleep. He sleeps for around an hour.
He then stays awake for another 2 hours, and then goes for another nap (around 1ish) also for another hour.
I try to get him to have a third nap, which is harder to do. He has never gone down in his cot for this nap, so sometimes I let him feed lying in bed with me and he dozes on the boob. I do that between 5 and 6pm.
It's only very recently that I've got this routine and been able to get him to nap in the cot, and it's actually had a detrimental effect on his bedtime routine. My partner used to give him an expressed bottle before bed and he always associated this with sleep, and so he would literally fall asleep as soon as the bottle hit his lips. But for the last two weeks he has screamed and will only sleep if I breast feed him. I want to give up bf in a month or so, so I am persisting with with the bottle, but he won't fall asleep with the bottle, so I have to rock him. And I worry about that sleep association.
It sounds like there's a few of us with similar aged babies, what about a support thread? Where we can try to support each other to help our babies get a better sleep routine, and eventually sleep independently.