Greetings Jenna - Thank you for taking the time to submit this circa 1970 sleeper sofa. The Service Mattress Company Inc. of Chattanooga, Tenn was incorporated in 1967 so your piece will have been made after that. It's a fabulous mid-century design, American made but does appear to have some condition issues that may be difficult to repair and because of that I would expect this to sell between $100 - $200.
Thank you for your submission, do let me know if you have any follow-up questions. Sincerely, Erin-Marie W.