The "Bliss" selection of mattresses from the Diamond Mattress "Dream" Collection, provide a long wearing, comfortable, supportive mattress with cooling effects. The CoolTouch GEL Memory Foam adds support and pressure relief, while, with its ventilated design, is 12 times more breathable than regular Memory Foam. Feel the support of the personalized contouring from the Individually Wrapped Coils. These coils are encased with a tri-zoned high density foam to firm up the edge and enhance the lumbar support. The cover with CoolTek™ fabric, keeps you dry and cool providing an uninterrupted sleep experience. This pillow top mattress is ideal for a side sleeper and could also be used by a back sleeper.