hello...my son is 21 months old. he has suddenly started taking super short naps and it's about to kill me...especially considering that i'm prego with #2 (am super exhausted) and will need him to sleep longer once #2 arrives so that i can have some sanity. he used to take 2 hour naps...sometimes as short as an hour and 45 mins and sometimes as long as 2.5 hours...but this past week, he's been taking as short as hour long naps. i know he needs more sleep then this b/c my usually happy son falls apart in the evenings and is just overall more cranky before bed. twice this week we've had to leave restaurants b/c of meltdowns and that is so unlike my son. he usually is a 9.5 - 10 hour night sleeper (i know, i know...not much, but it's all he'll do) followed by a 2 hour nap. now he's doing short naps. please, please help me....i've posted before and didn't get any responses, so i'm trying again. i have to figure this out...all my friends kiddos take like 2-3 hour naps in the afternoon and sleep a good 11-12 hours at night. what am i doing wrong? my son knows how to put himself to sleep and back to sleep, so i know that's not the issue. do sleep habits suddenly change around age 2?