I'm just wondering how much sleep other 19 month-olds need. Basically, DS has been a very good sleeper up until recently. He wakes sometime between 7 and 8am, naps between 1:30 and 3:00, and would go to sleep around 7:30pm. We have a consistent bedtime routime of bath, storytime, lullabies and bed, and he would go into his cot awake at 7pm and then quite happily settle himself sometime between 7:15 and 7:30. All of a sudden, however, he gets so upset at bedtime and won't fall asleep until 8:30 or 9:00, and last night it was close to 10:00pm! We have had a lot of upheaveal in our lives recently and I think he's been picking up on my and DH's stress, but I'm wondering if maybe we're putting him to bed too early? Sorry this is long! Thanks.