The death of 32-year-old father-of-one Declan Power of Bunmahon, Co Waterford, is being treated as a tragic accident, a Garda spokesman said.
Preliminary results from a postmortem examination carried out by assistant state pathologist Dr Margaret Bolster at Kerry General Hospital on Saturday indicated the man received his injuries in the back of a refuse truck.
Mr Power is understood to have been visiting Listowel for the annual Harvest Horse Racing Festival, which took place in the town throughout the week.
Gardaí believe Mr Power got into a catering-sized wheelie bin and fell asleep at around 5am on Friday.
The bin was later collected by a truck and his body was discovered when the bin was unloaded at the recycling depot in Kilmorna between 4 and 5pm on Friday.
The truck had been collecting waste around Listowel throughout the day.
Workers at the sorting site were shocked by the discovery and the gardaí were immediately alerted.
The Kerry scene of crime investigation team carried out a full forensic examination of the scene and the body was removed to Kerry General Hospital late on Friday night. An inquest is to be held later.
Meanwhile, a 19-year-old man who died in a single vehicle accident at Camp, Co Kerry, early on Saturday has been named as Michael O’Donnell of Duagh, Camp.
He sustained fatal injuries after his car went out of control and hit a wall just before 2am.
Mr O’Donnell was the only occupant of the car. His body was removed to Kerry General Hospital, Tralee and gardaí haveappealed to any witnesses to the accident to contact them on 066-7130122.
In Dublin, a 27-year-old female cyclist was injured in Crumlin when she was involved in a collision with an articulated lorry. The woman was taken to St James’s Hospital where her condition was critical but stable.