This mattress fits the full crib and toddler bed forms of each of our cribs and is a standard size.

The Lullaby Earth Breathe Safe Full Crib Mattress is designed for parents looking for an alternative to the chemicals used in conventional crib mattresses along with full breathability. This style consists of a non-toxic waterproof mattress with a removable washable, waterproof, breathable cover. It is non-toxic, waterproof, hygienic, and provides proper support—everything  you need for your baby's safe sleep. This mattress has a dual-firmness design that grows with your child, with one firmer infant side and one side with a toddler-appropriate level of cushion.