Night from hell

I posted a few days ago about the 30-second temper tantrum; well, now I've had the 12-hour, all-night torture session and I must be on my way to developing that thicker skin I was talking about. Daisy is sick and has a terrible cough at night, so hopefully this is a passing thing-- otherwise, we're all in some deep trouble. I got her to sleep, but she woke up screaming and crying when I placed her in the crib. I got her back to sleep, but then the crying started again when she went in the crib. We let her cry for intervals in between, but more than 20 minutes of it seems too much when she is sick. This went on and on pretty much all night. I don't know--it's all kind of a blur. She had been sleeping 11 or 12 straight hours before this. One should always be humble and never assume it's all figured out. Must remember that.