Sealy Posturepedic Hybrid Copper Cushion Firm Mattress (Queen Mattress Only) Includes both gel memory foam & individually wrapped coils for ideal comfort. OUTLAST treated knit fabric for superior temperature regulation. Breathable fabric wrap to promote better Air flow. Center third of the mattress packed with extra coils and additional gel memory foam to improve the durability of the mattress as well as the contoured support you feel when you lay down. The Edge of this mattress is reinforced by a 3.5 inch band of high density foam to increase the sleeping surface as well as provide a comfortable seating edge around the mattress.