We sell our Lift mattress topper in two firmness options: Comfort and Support. The Comfort Lift is a softer mattress topper designed to add some cushion to your mattress. It’s 3 inches of Bio-Pur foam to serve as a cloud-like barrier between you and your mattress. The Support Lift is firmer Affinity foam to enhance your bed’s responsiveness and keep you lifted. Both the Comfort and Support Lift layers feature HIVE technology to promote better posture and alleviate pressure points