Rest Assured. There’s no need to sacrifice form for function with the stunningly stylish Brookline Full sleeper sofa. Made of ultra-soft and durable bonded leather, the Brookline features welted back and seat cushions for a sleek and modern silhouette. Low-profile track arms and block feet finish off the look of this piece that’s so stylish, no one will guess it’s a sleeper sofa! A 4.5-inch memory foam mattress is included.