A baby sprinkle is a smaller alternative to a baby shower, often reserved for second, third, or even fourth children if parents don't need a lot for their new bundle of joy. (Of course, you could have a full-size second baby shower if you want to, especially if it's been a while since the first child or you're expecting a child of different sex). It's a smaller celebration in most cases, so a baby sprinkle might only last two hours. This is especially true if it's a smaller, more intimate gathering.