Latex mattresses are made from the sap of rubber trees, though there are some synthetic latex mattresses and latex blends on the market as well. Latex mattresses are famous for providing excellent support and firmness. Air mattresses, on the other hand, are filled with air, rather than foam, innersprings, or water. The support they provide varies according to personal preference. The level of support is easily adjusted by inflating or deflating the mattress. What other differences exist between the two?