Some background:
We've started training our DD to sleep using PUPD when she reached 4th month, and it worked like a dream. After the initiate few tough days, she had totally adapted to it. We could just do the usual sleeping rituals, put her down while she is awake, and leave the room. She would then fall asleep with no fuss at all. And after about 2 weeks, she could sleep through the night from 8pm to 7am
However, about a month later (DD was 5 months old), we went on a holiday (from Asia) to London for 2.5 weeks. Since then sleep time became a nightmare. DD is almost 9months now, it's been 4 months since our trip and DD is still not sleeping. She's been through time of SA, teething, sickness, and also unknown reasons that make her couldn't sleep well. To cut the long story short, DD has improved a lot (from couldn't sleep without me, to waking 4-5 times at night).
The problem with bedtime now is that DD couldn't settle well at bedtime. Every night after her last feed (bf), I put her down to bed and she will toss and turn and trying to put herself to sleep. But usually after 15-30min she will wake up crying. A lot of time she will settle only when I pick her up. Then I PUPD then shhh/pat her. She will then suck her thumb, trying to put herself back to sleep, but then wake up again after 15-30min. And the whole thing repeat and repeat again for 2-3 hrs every night. From what I observe, DD is trying to put herself to sleep by sucking her thumb, toss & turning just like an adult do. But then she still can't get into deep sleep and so she cry out of frustration.
DD is doing 2 naps a day, each one is 1.5-2hr. She is sleeping absolutely fine during nap time, although might wake up once occasionally. Below is our routine:
7am breastfeed
8 or 8:30am breakfast
9:30am Nap (1.5-2 hr)
11:30am. Breastfeed
12:30pm Lunch
2pm. Nap
3:30 or 4pm. Breastfeed
6pm. Dinner
7pm. Bath
7:20pm. breastfeed and bedtime