Merax 4 Inch Memory Foam Folding Mattress and Sofa Guest Sofa Z Bed Sleeping Mattress 74" X 39" X 4" (Twin) Can be used as a Chair or as a single Bed Fantastic for Kids Sleep Overs or unexpected guests Soft Linen Effect Upholstery Fabric A mattress simply folds out to become a floor sofa As a mattress it becomes approx 74" long suitable for most kids and adults