A recent investigation into the effects of co-sleeping on mothers’ mental health has revealed some concerning trends. The study, conducted by researchers at Penn State, focused on 103 new mothers and highlighted that those who co-sleep with their infants for more than six months tend to experience higher levels of depression and feelings of being judged. Co-sleeping in this context refers to either sharing a bed or a room with the baby, encompassing families that engage in both practices.
The findings showed that mothers who continued to co-sleep past the six-month mark reported a 76 percent increase in depressive symptoms compared to those who transitioned their baby to a separate room. Additionally, these mothers felt 16 percent more judged for their co-sleeping choices. Interestingly, the study noted a decline in co-sleeping as babies aged: 73 percent of mothers were co-sleeping at one month, while that number dropped to 50 percent at three months and further to 25 percent by six months.
Douglas Teti, a professor at Penn State, remarked, “The persistent co-sleepers — those who continued past six months — seemed to attract the most criticism.” He added that these mothers often reported increased worry about their baby’s sleep, which can lead to self-doubt, exacerbating their mental health struggles. This judgment from others can be detrimental to a new mom’s well-being.
Mothers are encouraged to prioritize their own comfort and well-being when deciding on sleep arrangements. Teti emphasizes the importance of open communication between partners about co-sleeping to prevent misunderstandings and potential conflicts. He states, “To be the best parent you can be, you have to take care of yourself, and your child benefits as a result.”
Reflecting on personal experiences, I can relate to the pressures of co-sleeping beyond six months. Like many, I found myself in this situation not by choice, but out of necessity when my son wouldn’t sleep otherwise. This often left me feeling defensive and anxious about my parenting decisions.
It’s crucial to remember that co-sleeping can impact mothers’ sleep quality more than fathers’. This could lead to chronic sleep deprivation, which is something to consider for the well-being of the family. For more insights on navigating co-sleeping and parenting, you might want to check out this informative article or explore resources offered by NICHD for pregnancy and home insemination.
In summary, co-sleeping can lead to increased feelings of depression and judgment among mothers, particularly when extended beyond six months. Open communication between partners is essential for establishing a sleep arrangement that supports both parents’ and the baby’s needs.

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