Swaddling's coming back as many parents learn that this is great way to sooth crying babies. Swaddling also prolongs sleep and reduces the baby's risk for SIDS, sudden infant death syndrome and it has the added advantage of making babies very portable/
Or course, there's the wrong way to swaddle that could affect the baby's hip development and result in hip dysplasia (hint: you want to leave plenty of room for the baby's legs to move around. And then there's The Right Way to Swaddle