Sealy Posture Pedic Hybrid King - Make an offer! Sealy Posturepedic Premium Hybrid Firm (I would say on the softer side of firm) but supportive and cooling technology. 15 inches in depth. Will consider OBO. You must haul. I is a heavy mattress so you will need 2 strong people to move. Mattress looks and feels brand new. It has been kept in a zipped bag with mattress pad on top when in use.