Whether it is made from natural latex from a rubber tree or from emulsified synthetic latex, a foam mattress contains a solid vulcanized core. During the vulcanization practice, the latex foam is filled with air bubbles, giving it softness and making it flexible enough to offer comfortable support. The latex foam core is surrounded by a cotton sheath for a breathable layer of padding close to your skin.
A foam mattress offers advantages that help it work will on a platform bed. It doesn't require the support of a box spring, so you can lay the mattress flat on the platform. This saves money and also prevents your mattress from being too tall off the floor. It also makes it easier to change sheets. Latex foam is not at risk for internal mold growth the way traditional mattresses are, so moisture buildup inside the mattress is not a concern.
In order to get the most comfort and longest life from a latex foam mattress on a platform bed, it requires regular care. During the first year you own the mattress, rotate it every month. Flip it over every six months. After the first year, rotate the mattress three or four times a year, and continue to flip it twice a year. This distributes wear all over the mattress, preventing it from sagging or breaking down internally.
If you live in a humid climate, there is a small chance mold or mildew could grow on the bottom of your foam mattress. This happens when moisture builds up between the mattress bottom and the flat surface of the platform. When changing sheets, check the bottom of the mattress for the tell-tale musty smell of mold growth. Running a fan in the room will reduce the risk of this complication.