The blaze happened about 1 a.m. Wednesday in Lakewood.
Neighbors say the woman had been sick and was unable to move around. Lakewood police say the man came out at one point to yell for help, then went back inside trying to save his wife.
West Pierce Fire and Rescue Battalion Chief Hallie McCurdy said arriving firefighters quickly knocked down the flames and found the couple's bodies.
McCurdy said the fire started in the apartment's living room but the exact cause hasn't been determined.
The Red Cross is helping a half-dozen residents in other apartments that had smoke damage.
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