The Director of Public Prosecutions (DPP) is to appeal the sentence handed down in Wicklow Circuit Court in the case of Carl Freeman.
Freeman (22) was last month handed a seven year jail term, with three suspended, after he and an accomplice viciously attacked William and Kathleen Crean in the early hours of the morning.
The couple suffered severe injuries with Mr Crean (72) beaten with a hurley as his wife was pulled from her bed by the neck.
Ms Crean (65) is suffering from cancer and is forced to wear two bags to collect fluid from her kidneys, a court heard last month.
Freeman, who was recently described by a judge as a “menace to society” shouted at the couple:
“We want your f****** gold, silver and cash.”
He and his accomplice also demanded that the terrified couple hand over guns.
There was no weapons in the house at the time.
The couple have since purchased an Alsatian dog and wear personal alarms as a result of their ordeal.