The serial number can be found on the side of the box below the date code and under the mesh tensioner of the crib. It can also be found on your Cradlewise Smart Crib box. Related ArticlesWhat’s included in the Cradlewise Smart Crib box?How do I assemble the Cradlewise Smart Crib?How do I convert from bassinet mode to crib mode (and vice versa)?What is the price of the Cradlewise Smart Crib?Can I purchase new bassinet and crib mesh?