Co-sleeping and breastfeeding are two closely connected practices that have significant impacts on both maternal and child health. Research has examined the relationship between these two activities and their impact on child development, maternal health and the safety surrounding sudden unexpected infant death (SIDS).
Evidence
- Promotion of Breastfeeding:
- Co-sleeping promotes breastfeeding, as it makes it easier for mothers to breastfeed during the night. Studies show that co-sleeping infants are breastfed more frequently and for longer periods compared to infants who sleep alone (McKenna et al., 1997).
- Co-sleeping during the COVID-19 pandemic showed that intentions to co-sleep or bed-share were strongly associated with intentions to breastfeed at 3 and 6 months postpartum (Schindler-Ruwisch et al., 2023).
- Safety and SIDS:
- Co-sleeping in combination with breastfeeding can reduce the risk of SIDS, but it is important to follow safe sleep practices. This includes avoiding co-sleeping in dangerous situations such as on a sofa, or if the parents smoke or have consumed alcohol (Marinelli et al., 2019).
- Maternal Stress and Health:
- Co-sleeping and breastfeeding can affect the mother’s stress levels and hormonal balance. Studies show that co-sleeping and breastfed infants can help regulate the mother’s cortisol levels, which can reduce stress (Simon et al., 2016).
- Night-time breastfeeding is associated with several benefits, including reduced risk of engorgement, mastitis and postnatal depression as well as better sleep for mothers (Clark & Burnett, 2020).
- Cultural and Ethical Considerations:
- Cultural factors play a significant role in how co-sleeping and breastfeeding are practised and perceived. In some cultures, co-sleeping is the norm and is considered a natural part of child-rearing (Pemberton, 2005).











