Wanda Denhalter, 63, was sleeping alone when she narrowly missed being crushed under the boulder early Saturday morning
Wanda Lee Denhalter was asleep in the master bedroom of the home when the boulder hit
The boulder pushed the bed and other furniture more than 4 feet
Denhalter's husband, who wasn't home at the time, said she apparently heard a rumbling noise before the 12-by-9-foot boulder crashed through the back wall of the house and pinned her in the bedroom