Dr. Caroline Dickens is a perinatal psychologist in San Francisco who spends her workdays helping new mothers navigate their new roles. As a young mother herself, she particularly struggled to get her own 3-year-old to fall asleep each night.

“He was just getting out of bed 100 times in a row, really begging for somebody to stay with him, negotiating. Just really working us at bedtime,” she told TODAY.com. “We needed to find a solution to get a little bit of our nights back.”

They tried the usual things, like sticker charts or cookies at breakfast if he stayed........

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