Sweetie Slumber Precious Dreamer crib mattress is designed to meet extremely high standards of performance based on health, comfort and safety of your baby. Precious Dreamer is manufactured to the following Specifications: 6 Inch design Premium stretch cover Eco-Friendly foam material Dual firmness 3 layer design Air-Wave design channels Hypoallergenic Medical grade materials Fluid proof/bedbug resistant Welded center seam design Life-Time WarrantyComfort Care