ST. PETERSBURG — The Macy’s at the Tyrone Square Mall has devoted 14,000 square feet to a new mattress and furniture department. The chain says customers have been showing a growing interest n home furnishings and decor. The new area has lifestyle and in-room sets that allow shoppers to pull together complete looks.The new assortment includes living room, dining room and bedroom furniture as well as accent pieces. Mattresses are made-to-order from local factories and delivered in less than a week, according to a Macy’s release.Read more: Is the future of department stores off-price? Macy’s Backstage opens in TampaThe new furnishings department, which opened Oct. 5, comes at a time the retailer is adding different elements inside its real estate. In August, Macy’s Backstage — an off-price shop within the store — opened at the Citrus Park Mall.