Your little one can sleep tight on the Simmons Slumber crib mattress. It 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. The flippable design prolongs the life of the mattress. It also includes a mattress protector. | Simmons Slumber Anti-Bacteria Breathable Crib Mattress with Mattress Protector