A foam mattress is quite simply a mattress made from foam, however, there is a lot more to it than that, and the benefits of a foam mattress over the traditional spring mattresses are plentiful. The first thing to consider is the type of foam used in these mattresses. It is far from the kind of foam that you find in cheap cushions and sofa's, and has been manufactured especially for the purpose of a good nights sleep, being missed with other materials for a combination of properties.
Most of these mattress's are marketed as memory foam mattress or visco elastic foam mattress's. The idea is simple enough, the mattress will adapt to the sleeping position of the individual user, molding to the support needs of the particular person sleeping in the bed. This makes for a more comfortable and supportive sleep which is not only better for a good nights sleep, but it also has health benefits for spinal support and such issues as bad backs or sore necks.
Double Bed Mattress
People who suffer from bad backs and other bone related problems, have often had to resort to very firm mattresses, sometimes they are so hard that although good for the back, they are uncomfortable. This is especially a problem for partners sleeping in the same double bed, where one person has back problems but the other has no sleeping issues and wants a comfortable bed. With the introduction of the memory foam mattress, these issues can be eliminated. First of the all the mattress no longer needs to be super hard, and can be of medium density and still give the support necessary for the person with back problems while the other person can still have a comfortable sleep. The foam mattress density is comfortable enough and adapts to the other persons preferred sleeping position too.
The composition of the mattress is typically made up of two layers: the top layer, and the support layer. The support layer, or the base layer as it also known as, is on the bottom and is made of a high-density foam which can mold to the surface it laid upon and keep the top layer, which is what the people will sleep on, perfectly flat. This smooths any lumps and bumps that are often present in the wooden or metal slates of the bed frame. The top layer will be made from a high quality elastic foam. This layer is the memory layer, it molds and adjusts to the weights and pressure upon it, and although it does spring back, it is a little like a thick liquid, and takes time to spring back. In other words it is not springy or bouncy like a traditional mattress.