Sofa Bed First, decide which kind of mattress you wish to buy. Essentially, there are three types of mattresses, namely, spring, air, and foam mattresses. Spring mattresses are bouncy with firm or soft material where as, foam mattresses are soft and provide the sleeper with great support. Air mattresses are made using air chambers to provide the sleeper with support where you can change the air pressure as per your comfort requirement.
So decide the type of mattress you want to buy. Generally, foam mattresses are durable and widely preferred by people. Sofa Bed Pictures