Swaddling is well described as a soothing technique to calm your child and promote better sleep. Because newborns have an immature nervous system with active startle reflexes, swaddling prevents infants from frequent awakenings during sleep, thus lengthening their naps and nighttime sleep.
Harvey Karp, M.D., FAAP, endorses swaddling in his book, The Happiest Baby on the Block. He has been an outspoken advocate for safe swaddling as he touts the five S’s—swaddling, side/stomach position (The AAP and others recommend babies always be placed on their backs to sleep), swinging, shushing and sucking—for calming fussy babies. “If we can reduce crying and increase sleep, that is a good thing,” he said.