Wayfair typically monitor to track their performance and make informed business decisions. Some common sales and metrics that Wayfair might monitor include:

1. Revenue: Monitoring total revenue provides a clear picture of the company’s overall sales performance and growth over time.

2. Conversion Rate: The conversion rate measures the percentage of website visitors who complete a desired action, such as making a purchase. Wayfair would track the conversion rate to assess the effectiveness of its website and marketing efforts.

3. Average Order Value (AOV): The AOV represents the average amount spent by customers on each order. Increasing the AOV can contribute to higher revenue.

4. Customer Acquisition Cost (CAC): CAC is the cost incurred to acquire a new customer. Tracking CAC helps Wayfair understand the efficiency of its marketing and customer acquisition strategies.

5. Return on Advertising Spend (ROAS): ROAS measures the revenue generated for every dollar spent on advertising. It helps Wayfair assess the effectiveness of its advertising campaigns.

6. Customer Lifetime Value (CLV): CLV represents the total value a customer is expected to bring to the company over their entire relationship. Monitoring CLV helps Wayfair focus on customer retention and loyalty.

7. Traffic and Visitor Metrics: Wayfair tracks website traffic, including the number of visitors, page views, and bounce rates, to understand user behavior and optimize website design.

8. Inventory Turnover: Inventory turnover measures how quickly products are sold and restocked. It helps Wayfair manage inventory levels efficiently.

9. Customer Feedback and Reviews: Monitoring customer reviews and feedback provides insights into customer satisfaction and identifies areas for improvement.

10. Customer Churn Rate: Churn rate measures the percentage of customers who stop making purchases from Wayfair over a specific period. Reducing churn is essential for maintaining a loyal customer base.

11. Cart Abandonment Rate: Cart abandonment rate tracks the percentage of users who add items to their cart but don’t complete the purchase. Wayfair analyzes this metric to optimize the checkout process and reduce cart abandonment.

12. Geographic Sales Breakdown: Monitoring sales performance by region or country helps Wayfair identify areas with growth potential and tailor marketing efforts accordingly.

These metrics, among others, are essential for Wayfair to evaluate its performance, make data-driven decisions, and continually optimize its operations and strategies. The specific sales and metrics monitored by Wayfair may vary based on its goals, priorities, and market dynamics.