As your little one grows, they'll need a mattress that can grow with them. The Mamas & Papas Premium Pocket Spring Cot Mattress features a dual-core pocket spring design that adapts to your precious little one's growing size. With one side suitable for a baby, and the other perfect for a growing toddler, this is a mattress that will last. Plus, the reinforced, recycled eco-pad layer, crush-resistant walls and flip-able and rotatable design ensure lasting quality.