Chattanooga firefighters responded to a Rossville Boulevard house fire Monday night.
The 1015 Taft Avenue home was still ablaze when firefighters arrived, but the fire was contained mostly in the living room, according to a fire department news release.
Katie Byrdie, the only person in the home, told firefighters she was taking a nap, woke up and saw her living room on fire.
The fire appears to be accidental, said Capt. Lesley Morgan, but investigators have not yet determined the cause. Dollar loss was estimated at $20,000.