David Hulley, 25, from Stockport, had fallen asleep with four-week-old Karson Winter-Hulley snuggled up to him.
The hearing today was told Karson’s mum, Beverley Winter, 24, had endured a difficult pregnancy with him but doctors reported no concerns when he was born in May weighing 5.5lbs.
David, a fire and security engineer, said: “Beverley had him early. We took him home and he was doing very well. He had a stuffy cold a few days before he d!ed but it wasn’t bothering him too much.
“He seemed OK the night before he d!ed.
“He woke up wanting to be picked up at about 5:30am. He was not crying out of the ordinary.
“I picked him up and went downstairs and he wanted a feed so I put him on the sofa amongst cushions so he was safe whilst I made him a bottle. I then went back in and picked him up and sat with him.
“He seemed to calm down and snuggled in to me. I was comforting him whilst the bottle warmed up, I was just admiring him and amazed by him.
“He went off to sleep and I fell asleep with him on the sofa. I wasn’t fully lying down, I was right up against the back and he was on my arm. I just dozed off.”
He told the inquest: “His skin colour wasn’t a live skin colour. He felt warm, but I thought everything I could have thought in that moment. I looked at him and thought he looked sweet for a moment, I didn’t want to disturb him but I wanted to see a twitch or movement but he didn’t.
“I ran upstairs and said to Beverly I think something’s wrong with him. Beverly tried kissing his mouth but she couldn’t feel anything. We called an ambulance and they tried to resuscitate him.”
Pathologist Melanie Newbold said: “He was quite a small baby for his age. He had no outside !njuries or marks and was perfectly normal. He had signs of a common cold, but he was well until he d!ed.
“Sleeping on a sofa or in a bed with adu|ts can cause a risk but we don’t always know why. I had to record the cause of de*th as ascertained. There is nothing to say any of these things contributed but it could have.”
Det Insp Graham Jenkins, who investigated Karson’s de*th, said: “There was nothing of concern to us. I could tell it was a loving warm family address. There were lots of toys and pictures around.
Recording a narrative verdict coroner Alison Mutch told Mr Hulleyd: “I’m sure you still think about your son every day. He was your son and it was very clear from evidence just how well loved he was and how wanted he was as a child.
“There was no concern with his de*th and the days leading up to his de*th. He had a cold but nothing to cause concern and not caused him to d!e.