Mary Grace DeMarco said she fell asleep watching TV with the lights on, at her home in the Kipling Avenue and Dixon Road area.
"I think it was about 2:30 a.m., I heard my bedroom door opening," DeMarco told CBC News in an interview on Monday, just hours after her encounter with the burglar.
She then saw a tall man who was wearing dark clothing.
"I guess I scared him off, or we both scared each other off and he left from the front door," she said.
DeMarco believes the burglar got in through the back patio doors of her home. He stole some jewelry and electronics.
During years of living in the area, DeMarco said she has never had any problems.
"I thought being in this type of neighbourhood, surrounded by all the homes, that I thought I would feel safer," she said.
"I don’t feel safe, I don't feel safe anymore."
So far, police are not linking the incident to other neighbourhood burglaries that have occurred this summer.