DHP Futon Mattress bought 2 years ago for our guest room used sparingly. We did not fold/sit on it because it would slide off our futon frame. Medium firmness .Guests have complimented the futon mattress and how comfortable their sleep was. We upgraded to another futon that folds and sits better in our existing frame. This futon mattress is especially good as mattress, not folded as a futon in a frame ( unless you have particularly good frame and it just did not work with our slippery frame.) No stains/smell No stains/smell Brand new $196.00 plus tax ** frame not included amazon link {url removed} From pet-free, smoke-free home Condition - good - 75 by 54 by 8