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 ...

CONVERTIBLE CRIB: Converts from a crib to a toddler bed, daybed and full size bed with headboard (Daybed/Toddler Guardrail Kit #0080 & Full Size Bed Rails #0050 sold separately) GROWS WITH BABY ...