The Ainsworth Crib 4-in-1 Crib will be the centerpiece of your childs room from birth till their teen years. As a crib, it features an adjustable height mattress support that allows you to keep your baby safe by lowering the crib mattress as they begin to stand. When your little one is ready to make the move to a big-kid bed, the cribs grow-with-me design converts into a toddler bed, daybed or full size bed.