Adjustable mattress positions make it possible to continually lower the height of a mattress as a baby grows and becomes able to reach the rails. (justbabybeds.com)
It features adjustable mattress heights which allow you to easily raise or lower the height of the mattress that will give you convenience. (babycribfinder.com)
Its extra cozy because it comes with a 3 level adjustable mattress support system. (simplybabyfurniture.com)