Your little one can sleep soundly in the Berkley 4-in-1 convertible crib. It can convert to a toddler bed, a daybed, and a full-size bed (and offers three mattress positions!) to suit your child's changing needs. From Sorelle Furniture. For use with the Sorelle Brittany 148 Toddler Rails and Sorelle 221 Full Size Rails, not included Crib supports up to 50 lbs Wood construction