After a very unexpected successful and painless 3 to 2 nap transition and almost 2 weeks of the 2 nap schedule my LO has started to wake up after 40 mins into a nap. I rescue every nap now. He used to have 2 x 1.5 hr - 1.75 hr naps. I usually plan about 3-3h20m of nap time.
I switched to 2 naps...