Complacency is Dangerous

I know I have been blessed with a child who sleeps through the night. Knowing that once she goes to sleep around 9pm, she won't wake until at least 5:30 or 6 am is very comforting. But this has lulled us into a sense of complacency. We boast and brag about how well our child sleeps, and then, and then....she doesn't. She has a night like last night. Poor thing is sick, and coughed all night long. Then woke up at 4:15 and wanted to eat, be changed, and play. She finally went back to sleep at 6:15am. We are exhausted.