A depressed mother could end up giving her baby developmental issues.
That's according to a study published in the journal, "Child Development."
Researchers at Penn State University say if the mother is depressed, she's more likely to wake her baby up in the middle of the night, even if it's fine.
They say if this happens often, it can lead to problems for both mom and child.
Researchers observed 45 families over the course of a week.
It's apparently a vicious cycle.
The more sleep the mother loses, then the more depression symptoms she will have.
Other studies found that children who consistently don't get a good night's sleep have a harder time regulating their emotions and bonding with their parents.
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