DEKALB, ILL. — CBRE has arranged a 7,017-square-foot retail lease in DeKalb, about 65 miles west of Chicago. Sleepy’s, a mattress retailer, will occupy space at 2350 Sycamore Road. Founded in 1957, Sleepy’s has more than 800 showrooms and seven distribution centers. The new location is part of the company’s expansion in Illinois. Lynne Brackett and Karen Walsh of CBRE represented the landlord, Arthur Goldner & Associates Inc., in the transaction. Willy Hoag of Mid-America Asset Management Inc. represented the tenant.