Natrol, Chatsworth, CA, has appointed Peter Leighton vice president of marketing and product development. Previously, Mr. Leighton was with Copernican Associates, a management consultancy, which he formed. In other news, Natrol has made several promotions. Gary DeMello has been promoted to Chief Operating Officer (COO); Michael Surmeian has been promoted to vice president, sales; Richard Hunnewell has been promoted to director of planning, purchasing and inventory control; Kurt Kirkland has been promoted to director of warehouse and plant operations; Lynn Schrempf has been promoted to Natrol Controller; Christina Bodnar has been promoted to assistant controller; Gayle Kelly has been promoted to office manager; Gina Ferrato has been promoted to senior manager of sales and marketing services and Ellen Driscoll has been promoted to senior manager of food, drug and mass services.