Your little one will sleep tight on the Simmons Slumber crib mattress. It grows with your baby and has a breathable Tencel cover that ensures softness and hygiene. An extra firm core provides a safe and stable surface. A two-sided design with a plush toddler layer offers adaptable comfort. Plus, the mattress is flippable, antibacterial, and hypo-allergenic. | Simmons Slumber Anti-Bacterial Breathable Crib Mattress