Serta Extra Firm Crib Mattress Mattresses

Trust a Serta extra firm crib mattress—the best density mattress for cribs—to keep your little one safe and supported while they rest. Serta was founded in 1931, and the company has decades of experience crafting quality mattresses. Measuring 27¼" by 51⅝", a Serta extra firm crib mattress complies with US federal size guidelines.

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