Alright I feel rather discouraged now. I have tried shortening her A time to about 2hr 15 mins on some days but she continues to wake. There were a couple of times in which she slept through till 1.5hr but those times, it was usually because she was overtired (we were not home yet as we were in church).
This morning, I was determined to find means and ways to extend her nap cos I am suspecting she has gotten used to waking up at 35th to 40th minute. Took me 45 mins of shh pat to coax her to sleep for another 30 mins!
The other problem I have is, I can't tell what time she wakes up in the morning. I go to her only at 7am but I suspect she wakes up much earlier to play. She is a rather quiet baby in the morning and plays on her own a lot. So I don't know what time she wakes! That really complicates matters so I don't know when exactly to put her down. But when in doubt, I still put her down for her nap at about 9.15am or 9.30am or whenver she seems tired.
Sigh.
I think I will try W2S again later.
Rather discouraged.