Study leader Professor Ern Hauck said: “The other important finding from our study is that any amount of breastfeeding reduces the risk 
of SIDS.”

For financial reasons, many mums have to return to work a few months after the birth of a new baby, so this is reassuring and liberating news for them.

The new research pooled data from eight major studies across the world, involving 2,259 SIDS cases and 6,894 infants where death did not occur.

The size of the study means the results are reliable, despite differing cultural backgrounds.

Though the cause of SIDS remains a mystery, parents can reduce the risk by not smoking while pregnant or after the baby is born, and always placing the baby on their back when they sleep.

The myriad health benefits for breastfeeding include reducing the risk of infections, diarrhoea and vomiting, childhood leukaemia, Type 2 diabetes, obesity and cardiovascular disease in adulthood.