Knirose Swaddle Blanket Sleep Sack with Arms Up Design 2 Packs, Hands Up Sleeping Sack 3-Way Transitions to Arms-Free Wearable Sleeping Bag for Newborn Baby Boys Girls Snug Fit Calms Startle Reflex

** All babies are born with touching their face and sucking on their hands as they did in the womb. This medically proven behavior is how a baby calms and sleep on their own. Traditional swaddling prevents this. ** Let Babies Sleep Through Diaper Changes. The Knirose’s 2-way zipper lets you unzip from the bottom, giving you easy access for nighttime diaper changes without having to fully unwrap and wake your baby, so you can both get back to sleep more quickly. So middle of the night diaper changes are a breeze. ** Knirose ARMS UP Swaddle allows you to easily and safely swaddle your baby. ** No excess or loose fabric to unravel and become a suffocation hazard. ** Arms UP position reduces the risk of rolling over. ** Hip-Healthy design allows hips and legs to move freely. ** Single layer of breathable fabric reduces the risk of overheating. ** Perfect transition to sleeping with arms out. Three sizes are available, when your baby shows signs of rolling over, be sure to remove their hands from the Swaddle sack. They will be free to reposition themselves by their hand when rolling over.