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Hello, and welcome to the first installment of the NYT Parenting newsletter! I’m Jess Grose, the lead editor of Parenting, and the mom of two girls who are 6 and almost 3. I’ll be your guide each week as we discuss all the issues affecting your fertility, babies and kids and your lives with them . In May, we’ll be launching our own fancy website full of evidence-based guidance, news and personal stories. And we’re sharing some new articles in this newsletter to give you a taste of the full Parenting experience.

One piece we’re excited to run this week explores how to get your kids to share a room without killing each other. It’s a subject dear to my heart, as my children have been splitting a bedroom with varying degrees of success for a while now.

My 6-year-old is a stereotypical first born. She never met a rule she didn’t like to follow or enforce on her little sister with an iron fist. She’s always been an excellent sleeper — my husband and I were those jerks who barely had to sleep train our first baby. She just started sleeping a solid 12 hours a night from 6-months old; no muss, no fuss.

Her little sister, however, is an agent of chaos . For a nine-month period early on (or was it a full year? I honestly blocked it out), she awoke between 4 and 5 a.m. Every. Single. Day. Right before she turned 2, she finally started sleeping until 6:30 a.m. in the same room as her big sister, and going to bed without much drama around 7:30 p.m. … until about a month ago, when she figured out that her bedtime is a scam.