If you are a NASA enthusiast, you may have heard of Phase Change Material (PCM), developed in the 1980's for astronaut spacesuits. This material consists of matter that can change from solid to liquid depending on the temperature just like water changes to ice, liquid or steam.
Through the CarbonCool line, microcapsules of PCM is infused into memory foam in order to provide relief to you depending on your body temperature. Graphite particles added to the foam conduct body heat stored in the PCM away from your body. Alternatively, if your body temperature gets too low, the stored heat gets released in order to warm you up.
With your temperature more regulated in this way, you are less likely to toss and turn or wake up, thereby enjoying a comfortable night's rest.