Mainstays Contemporary Futon Sofa Bed for $139.00 shipped.  Select free site-to-store for in-store pickup at Walmart to save on shipping. Otherwise, shipping is $19.97 for a total of $158.97 shipped.  Here is a screenshot for your reference.  It is available in Charcoal, Chocolate, and Red colors, has a multi-position back, micro-suede upholstery and measures 72"L x 45"W x 34"H.