we've gathered together all the information you need about mattress sizes for cot beds, crib beds, toddler beds and your child's first 'proper bed', plus the ages they roughly correlate to.

Every mattress we tested was the legal size—at least 27¼ inches by 51⅝ inches, and no more than 6 inches thick. This size ensures a snug fit in a standard-size crib. Safe crib mattresses keep ...

Crib mattresses come in a standardized size to tuck snugly into any crib, assuming you get a new or nearly-new crib that's up ...

Learn more When I was searching for a crib mattress before my daughter was born, I was extremely overwhelmed by the options. Obviously, I wanted one that would be safe and comfortable, but babies ...