Comfort zone Mattress onlySlumberzone comfort zone mattress features 3 Zone Posture Pro Pocket Spring mattress with 360 Foam Side encased with pillow top which gives a medium soft feel to the user. Layers of High Density Foam and designer Bamboo fabric are other features of this boutique mattress. Features: Posture Pro Pocket Springs Multiple Layers of High Density Quilting Foam with Pillow Top for medium soft feel 360 Foam Encased Equalized Body Pressure Points Minimal