The sketch is of a man who attacked the woman while she was cleaning a hotel room around 3:45 p.m., according to police.
The victim reporting seeing the suspect as he walked toward the hotel from Rogers Plaza at 101 Golf Course Drive. The woman was cleaning a first-floor room patio when the attack occurred, police said.
While cleaning, the suspect grabbed her from behind and put a knife to her throat. He then forced her through the sliding doors into the room and ordered her to not scream.
The suspect tied up the victim and began to sexually assault her, but the victim was able to fight off the suspect, police said.
She screamed and was able to get help from another employee who called police.
The victim was taken to the hospital.
The suspect had run out of the room back toward Rogers Plaza. Police searched the area but were unable to find him.
The suspect is described as a black man, between the ages of 30 and 40 and stands between 5 feet 10 inches and 6 feet tall with a thin build.
He has a tattoo of writing on the side of his neck.
At the time of the attack he was wearing a white button-down shirt with small stripes on it, black dress pants, and black gloves.
Anyone with information about the case is asked call Rohnert Park Department of Public Safety Detective Tara Douglas at (707) 588-3526.