The box top of this premium mattress is filled with lavishly rich layers of soft white polyester and the sleeping surface is finished with neat straight lined stitching nestled beneath the pillow top is a core of 1000 pocketed springs based on a king size that individually adjust with perfect precision to your bodies movements as you turn this mattress is designed without the need to turn however we do recommend that you rotate the mattress head to toe on a regular basis to keep the sprin