Esperance police officer-in-charge Richard Moore said a woman returned home to find the thief sound asleep on her bed, after downing most of a bottle of champagne.
"He has consumed some champagne, I'm not sure how expensive it was but in the photo, it looks expensive," Senior Sergeant Moore said.
"It must have been quite potent because he has fallen asleep in the resident's bed, which is not a good thing, and the owner has returned home and located this male person in her bed."
The woman quickly left the property and phoned police.
He said the man was highly intoxicated when taken into custody, and police had taken him to Esperance Hospital as a precaution.
Senior Sergeant Moore said the 36-year-old recorded a blood alcohol reading eight times the legal driving limit when tested by police.
"This is a bit weird, to fall asleep in the bed and be laying there when police came in," he said.
The 36-year-old was charged with burglary and stealing and will appear in Esperance Magistrate Court on August 8