Her A time is about 2hrs each time. I thought that's long enough for her age? We are trying to follow the BW book 4hr routine as much as possible. But since she is not sleeping well her naps are chopped into short naps.
Update from today: As things didn't go well with PUPD/shh-pat, and we were frustrated and desperate, we have decided to try one thing - swaddling! And that makes a huge difference!
We had stopped swaddling our daughter since she was around 3 weeks old as she seems doesn't like it. I guess we shouldn't have stop swaddling her at all?!
Since we starts swaddling her again last night, she was able to fall asleep much quicker, although she still woke up twice last night. This morning during nap time, she slept for 1.5hr straight. But since she woke up, she wasn't able to settle herself back to sleep. She was cooing and playing in her cot, with an occasional cry like calling someone to attend to her. She still look a bit tired rubbing her eyes. I shh-pat her but couldn't put her back to sleep so I picked her up for A time.
Now she is down for her second nap. We will see how it goes. Finger cross!