Answer:
Benefit
Step-by-step explanation:
When products are organized according to what the seller thinks as valuable to the customer it is known a benefit segmentation.
Here, the mattress firm believes that the customers do not get enough sleep. This is the thing that the customers consider important according to the firm. Therefore they place sleep enhancing products at the entrance.
This makes it easier for the customers to find the products they need the most in a shorter span of time.