how old is he, and what size bed does he use? do you want it crib size or bigger? the size really depends on what matarial you have on hand, and what size you really want it to be. if he is just a newborn, crib is fine, sometimes i do a twin if he is in a twin bed. etc. depending on if you need to stretch the material you have, will depend on if you put something in between each square, or just continue on the way you are going. it is beautiful, and will be whatever the size you make. great job on the applique!!!!! 8-) 8-)