The baby may be now, growing 2-3 センチ long hair. Also called 'ツルツル', others full-fledged much can be expressed as 'フサフサ' in the child the perfect child. If your baby is?
Now the stomach of the baby, might hair is extended to about 2-3 centimeters. Some child that grows aligned much Nakaniwa can be expressed as "bushy", also perfect for a child to call it "slippery". Your baby, what about?