Wrapping a newborn tightly is called swaddling. It helps soothe babies, and, as Dr. Karp explains, has been shown to help babies sleep longer due to replicating womb-like conditions and helping control babies’ Moro reflex. But, when done incorrectly, there are risks. New parents will likely get a lot of instruction on swaddling methods before leaving the hospital, but if they need some help later on, Youtube is a great resource for quick review.
Source: https://www.sheknows.com/
