Here's how to make the transition from swaddle to no swaddle easier on everyone. As soon as your baby starts trying to roll over, it's time to stop swaddling. They might start trying as early as 2 ...
To swaddle, slip your baby's arms through the armholes, zip the sack from top to bottom, pull the non-Velcro flap across the baby's midsection and tuck it into the opposite side of the sack.