she's nearly 18 months; after a rocky start sleep wise we had a pretty good routine, 7-7 more or less and a short nap in the day (daytime napping always elusive here, worse luck - so of people whose babies sleep for 2 hours in the middle of the day). But all of a sudden we have her wailing and moaning for up to an hour at her normal bedtime - any idea why? Same at naptimes. Any ideas?