Dark Gray Sofa Bed and two cushions (http://www.ikea.com/us/en/catalog/products/S49089425/#/S89874376), easy to construct and easy to convert from sofa to flat bed.

For an extra $20 will add throw (Target originally $40) and two striped cushions (cushion covers were $15 each from ikea).
No marks or stains - in great condition.

Also selling -
Brand new, never opened mattress topper ($40) which is a great addition making the sofa bed extra comfy to sleep on. It fits brilliantly (we have another one which we had tried on here). http://www.amazon.com/Pinzon-Basics-Overfilled-Microplush-Mattress/dp/B000VESM46/ref=sr_1_1?ie=UTF8&qid=1432954950&sr=8-1&keywords=pinzon+mattress+topper

King sized Duvet ($15) barely used (bought as a guest duvet)- http://www.polyvore.com/ikea_365_mysa_comforter_warmth/thing?id=56324158

Will sell everything - Sofa bed, cushions, throw, mattress topper and duvet/comforter for $200 Perfect for your living room and for when guests come to stay.