You may already know that things like teething, illness, and sleep regressions can affect your baby's sleeping and feeding schedule. But did you know that your baby will go through a series of growth spurts in the first year of life and that these can cause big disruptions in sleep and feeding? Baby Growth Spurts: When They Happen The exact timing of growth spurts will vary from baby to baby, and not all babies will experience all the growth spurts listed below. But the following is a list