DD is 16 wks old. Sometimes I have luck extending DD's naps past 30-40 min mark (yay!) and then past 1hr20 - 1h30 mark as well, and sometimes she ends up napping 2+ up to 2.5. My question is whether I should cut it off at 2 hrs or let her sleep because whenever she wakes up and I am extending her naps with shh/pat and she could be awake for 10 min at a time each time, so she's not really sleeping for all of 2.5 hrs.