What are safe methods for co-sleeping (bed-sharing) with a 4-month-old infant?

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Last updated: February 13, 2025 • View editorial policy

From the Research

Safe Co-Sleeping Methods

To minimize the risks associated with co-sleeping, the following methods can be considered:

  • Room-sharing: Having the infant sleep in the same room as the parents, but on a separate sleep surface, can reduce the risk of SIDS 1.
  • Avoiding tobacco use: Parents who use tobacco should not co-sleep with their infant, as this increases the risk of SIDS 1.
  • Avoiding bedding accessories: Using duvets or pillows can increase the risk of SIDS, and should be avoided when co-sleeping with an infant 1.
  • Breastfeeding: Co-sleeping can promote breastfeeding, which has numerous benefits for both the mother and infant 2, 3.
  • Safe sleep environment: Ensuring a safe sleep environment, such as a firm mattress and a tight-fitting sheet, can reduce the risk of SIDS 4, 5.

Risks and Benefits of Co-Sleeping

Co-sleeping can have both benefits and risks, including:

  • Promotion of breastfeeding 2, 3
  • Increased risk of SIDS, especially for infants less than 11 weeks old 1
  • Increased risk of SIDS for infants whose parents use tobacco 1
  • Emotional and practical benefits for parents and infants 5

Parental Education and Awareness

It is essential for parents to be educated about the risks and benefits of co-sleeping, and to be aware of safe sleep practices, such as:

  • Recognizing the risks and benefits of co-sleeping 4
  • Understanding the importance of a safe sleep environment 4, 5
  • Being aware of the relationship between co-sleeping and SIDS 1, 5, 3

References

Research

Parent-infant co-sleeping and its relationship to breastfeeding.

Journal of pediatric health care : official publication of National Association of Pediatric Nurse Associates & Practitioners, 2007

Research

Risks and benefits of parent/child bed sharing.

Journal of the American Academy of Nurse Practitioners, 2009

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This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.