The official definition of the substance known as memory foam is as a “temperature sensitive visco-elastic material”. This means that a memory foam construct, when at room temperature, will mould itself around any object of relevant weight that rests on top of it.
In the context of a memory foam mattress, that means that when you lie down the memory foam will mould itself around your body, allowing you to sink gently into it. A regular mattress is not able to do this, which means that certain areas of your body are exerting more pressure on the mattress, which can cause aches and pains in the morning. With memory foam, your weight is distributed perfectly evenly across your entire body, meaning more comfort and less chance of physical distress. It is called “memory” foam because even after removing the object and the pressure, the mattress will retain your shape for a little while.
The memory forming foam automatically adjusts itself not only to your shape but also to your weight. By distributing your weight evenly across the entirety of the mattress, you will get a much more comfortable night’s sleep. In particular, if you find that you or a partner fidgets a lot during the night, having to shift position often in order to get comfortable, a memory foam mattress, or mattress topper memory foam will help you stay comfortable for longer. There are a variety of different brands that produce memory foam products, and there are also different densities and quality of the product itself. The most expensive and “best” memory foam mattresses are often referred to as “premium grade”.
Memory foam mattresses are particularly recommended for those who suffer aches and pains, in particular back ache. However, you don’t need to have a medical problem to enjoy the comfortable benefits of memory foam – you will almost certainly get a better and more comfortable night’s sleep with one.