The Italian fashion designer Giorgio Armani plans to retire in the next two to three years, he told the Italian newspaper Corriere della Sera in an interview published on Sunday. “I can still give myself two or three years at the helm of the company. No more than that,” the 90-year-old designer said. Armani had not previously commented on the future of his successful brand, which has been running for almost 50 years, or his possible successor. Now, he said, he dreams of a future in which he no longer has to make the decisions. “I don’t sleep at night. I no longer know the deep, peaceful sleep …