I was desperate, but skeptical. My 9 month old was a good napper, but at night had been unpredictable for 5 months. Sleep regression that led to some nights up every hour, most nights up every 2-3 hours, and once in a blue moon only up once or twice. The first night there was no change. I was nervous that she was just too old for this to work, or we would just be unlucky and had wasted $80. But I gave it the full five nights, and she’s only been waking up once to nurse!!! Sometimes she’ll wake u...