Final answer:
Sarah Winchester renovated her home into 160 rooms with unique designs to confuse the spirits haunting her.
Step-by-step explanation:
Sarah Winchester renovated her home outside San Francisco, now known as the Winchester Mystery House, into a total of 160 rooms. These rooms were designed in a unique way with doors that open into walls and staircases that lead to nowhere. The renovations were believed to be an attempt by Sarah Winchester to confuse the spirits haunting her and prevent them from finding her.