Harvard Researchers Found Why Some Babies Fall Back Asleep in 3 Minutes While Others Take Hours
It isn't hunger or a sleep regression. The difference comes down to one thing in your baby's room, and when a pediatrician and mom couldn't find a product that solved it, she had one made.
Every parent of a newborn knows the drill.
It's 3 a.m. The baby stirs. You freeze, hoping it passes. It doesn't.
Here's the part no one explains: every baby wakes up at night. That part is normal. The real question is what happens next. Some babies drift back to sleep in a few minutes. Others are suddenly wide awake, and you're both up for the next two hours.
And by then, you've tried everything. The white noise. The swaddle. The perfect wind-down routine. The Hatch, the Snoo, the app that tracks every nap. Someone told you it was the four-month regression and that it would pass. It didn't.
Somewhere in there, you stopped sleeping too.
For a long time, no one could really explain why some babies fall back asleep and others don't. A team of researchers at Harvard may have finally found the answer. It isn't hunger, teething, or a sleep regression. It comes down to a single thing sitting in almost every nursery in America: the light you switch on to see what you're doing.
That finding could have stayed buried in a journal most parents never open, if it hadn't reached Dr. Emily Robert. Emily is a pediatrician. She's also a mom. And for months, she was living the two-hour version of that night, over and over.