26/02/2026
I cannot believe we are still telling mothers that co sleeping is dangerous.
When Koa was born I carried this tiny seed of fear about sharing the bed with her.
Every message i had growing up said it was risky.
But the moment I let my instincts lead I realised this is the biological norm.
When a friend shared a podcast from James McKenna (thanks .celestial.mother) everything finally made sense. The science explained in such a grounded and evidence based way felt like permission to trust what my body already knew.
McKenna introduced the term breastsleeping to describe a very specific pattern seen in breastfeeding mothers. When a mother is breastfeeding her night time physiology changes. She becomes more alert, stays in lighter sleep and naturally curls her body protectively around her baby. Babies respond by regulating their breathing, temperature and nervous system through closeness.
This is why breastsleeping is different from generic bedsharing. It describes a biological pairing that relies on breastfeeding and a safe sleep environment. A firm flat mattress, no soft bedding, no smoking, no alcohol or sedating medications and only a breastfeeding mother sharing the sleep space.
Research from organisations like UNICEF UK and La Leche League shows that when these conditions are met co sleeping for breastfeeding families can be a normal and low risk option.
Anthropologists have shown for decades that mammals sleep with their young. Human babies are contact seeking mammals and our physiology was designed for closeness.
This is also why sleep training can feel so difficult for many mothers. It asks babies to behave in ways that contradict millions of years of biology.
If co sleeping does not feel right for you that choice is completely valid. Every family finds their own way. But we should not shame mothers or fill new mums with unnecessary fear about an option that is biologically normal and well supported by evidence when done safely.
Let your instincts guide you and give yourself grace as you find what works best for your baby and your body.