Sleeper sofas come in a range of sizes, from loveseats or chairs-and-a-half that convert into twin-sized beds and full-sized ... as a sofa, then convert into a roughly king-size mattress.

Floor Mattress Size: The full size is 54" x 80". The floor bed can provide you with a comfortable sleeping environment in all seasons, allowing you to enjoy more comfortable sleep. It is durable ...