LOVING father and husband Sukhwinder Singh-Digpal died due to natural causes at the age of only 26, an inquest ruled.
He had been out watching Pompey play with his nephew only hours before his death last February.
The coroner heard that after the match Mr Digpal went to the pub with his brother before returning home to watch DVDs with his wife Soneeta Kaur, 25.
A statement given by Mrs Kaur was read out by Detective Constable Amanda Waite, of Hampshire Constabulary.
She said: ‘Mr Digpal would normally sleep on the floor because he got up a lot in the night.
‘Mrs Kaur realised he had stopped snoring and was face down.
‘She turned him over and saw he was blue in the face, so she alerted her mother-in-law.’
The family called paramedics to the house, who then alerted police.
The force said there were no suspicious circumstances to his death.
Mr Digpal, who worked in customer services for South West Trains, was taken to Queen Alexandra Hospital, Cosham, but doctors could not resuscitate him.
He is survived by his four-year-old son Jaspreet.
His death was put down to sudden adult death syndrome (Sads) – a condition where a person’s heart stops.
A pathology report found there were no external injuries to Mr Digpal, of Salisbury Road, Southsea.
An internal examination found there had been a level of alcohol and medication in his blood, but not high enough to attribute to his death.
Coroner David Horsley said: ‘It’s so difficult to understand when such a young man just dies.
‘What an awful tragedy and I wish I could put my finger on it, but I have to say it’s natural causes.’
Father Amreek Singh-Digpal, 55, an accountant, said: ‘It’s something we will never get our head around.
‘For us there is still no closure because his death was not due to a specific illness.’
Remembrance prayers will be held at the Portsmouth Guru Nanak Sar Gurdwara, in Margate Road, Southsea, from February 4 to 6.
The prayers start from 10am each day, and everyone is invited to attend.