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)
Adjustable mattress heights for a growing baby, and an optional toddler rail make this the only bed from newborn to school age. (peurobaby.com)
From the materials to the design, it's made to remain the heart of your child's bedroom from infancy to adulthood, with adjustable mattress height, easy conversion to a day bed, and, with the addition of conversion rails (sold separately), transformation into a full size bed. (simplybabyfurniture.com)