: the practice of sleeping in the same bed or close by in the same room with one's child
Parents should be aware of potential co-sleeping risks, including accidental smothering and children falling off the bed.Nicky Cohen
Besides making a baby feel safe, co-sleeping extends the quality time that parents can spend with her.Martin E. P. Seligman
compare bed-sharing
co-sleep intransitive verb
… a mom of two in Atlanta. She loved breastfeeding, she returned to her career in marketing after maternity leave, and she co-slept with her babies for years. Parenting

Examples of co-sleeping in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The proud mom went on to state that motherhood was found in the playdates, school meetings, co-sleeping and emergency-room visits. Gabrielle Rockson, PEOPLE, 23 June 2026 No official autopsy has been released, but court documents indicated that the cause of death was suffocation from co-sleeping. Shannon Tyler, Idaho Statesman, 27 Feb. 2026 After a three-day trial, a Leavenworth mother was found guilty in the co-sleeping death of her infant daughter in the fall of 2022. Laura Bauer, Kansas City Star, 26 Feb. 2026 Co-sleeping Is More Common While the debate rages on in America about whether or not co-sleeping is safe, in many African countries, including Kenya and South Africa, as well as Latin America, co-sleeping—whether bed-sharing or room-sharing—is an accepted practice. Katrina Donham, Parents, 25 Feb. 2026 See All Example Sentences for co-sleeping

Word History

First Known Use

1966, in the meaning defined above

Time Traveler
The first known use of co-sleeping was in 1966

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Cite this Entry

“Co-sleeping.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/co-sleeping. Accessed 14 Jul. 2026.

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