2. Customers at Mattress Firm Keystone Shoppes rave about the exceptional service and expertise provided by the staff when shopping for an adjustable bed. They appreciate the knowledge and patience of the employees, who offer a wide range of options and ensure a wonderful buying experience. 6. Unique facts about Mattress Firm Keystone Shoppes include the availability of the Love Your Mattress Guarantee, discounts on top brands such as Sealy and Tempur-Pedic, and a 120-night free trial for new mattresses. Additionally, the company is involved in charitable initiatives through the Mattress Firm Foster Kids program, demonstrating a commitment to giving back to the community. 7. Mattress Firm Keystone Shoppes specializes in matching customers with the right mattress for their needs. With a focus on providing top-quality service and ensuring customer satisfaction, the business distinguishes itself by offering extensive training for its Sleep Experts and a wide selection of products from leading mattress brands.