not true. by right they take lesser nap but nap longer. eg they might nap 2-3 times a day for 1-2hrs but then they might drop their naps slowly n end up with only 1 nap of 2-3hrs. but every baby is different. some babies go through a period of catnaps at certain point of time but it will pass and they will eventually nap longer. my girl used to take only catnaps of 30-45mins as well but that was when she was much younger... from 2mths-5mths she has been taking 4-5 catnaps per day... only after 5mths she started to nap longer (1.5hrsX 2) n since about 10mths she is taking 2X1.5-2hrs nap per day. sometimes i dont let her nap in the late evening as it might disturb her night sleep so she will only be taking 1X1.5-2hrs nap now... my friend's baby at her age is taking bout 3-4hrs X 1 nap..