A New South Wales couple came home to a slow-moving intruder sitting in front of their heater earlier this week.
Vicki Haines told AAP when they arrived home, her partner Michelle was first in the door - and was frightened by what she saw.
"She was hiding behind a mountain bike wheel and our dog was going crazy," Ms Haines said.
"She started yelling out 'there's a koala on the couch!'"
Ms Haines says the koala had taken up the spot in front of the heater, where she usually sits with the dog.
The Hunter Koala Preservation Society was called in to move the young male koala. He was microchipped and released into the bush.
Rescue co-ordinator Simone Aurino says koalas should not be approached. Despite their cuddly appearance, the marsupials have long, sharp claws, which they use to defend themselves.
Port Stephens is one of two areas helping preserve the koala population in the Hunter region.
Ms Aurino says koalas are increasingly getting caught in home and backyards in the area, as they move between areas of bushland.
It's speculated that the koala climbed in through the dog-door.