"[His mother] awoke at around 4am to check [the baby] and found him face down in the tri-pillow. She picked him up and found that he was cold."
As she tried to put more warm clothes on him she realised he was not breathing and decided to rush him to hospital, he said. The baby's father instead called an ambulance.
They performed CPR until the ambulance arrived but he could not be revived.
Pathologist Dr Fintan Garavan, who examined the baby, said that in his opinion the baby died of positional asphyxia.
In summarising the pathologist's comments Mr Naude said: "At less than three months of age, a child cannot support its own head with their underdeveloped neck muscles."
Mr Bain reserved his decision but pleaded with parents to avoid sharing a bed with their babies. "All of these deaths are 100 per cent preventable."