Irrespective of which swaddling method you use, you must stop swaddling your baby as soon as he or she starts to show signs of being able to roll over independently. At this time, you must transition your baby out of swaddling into 'arms-free' sleeping.
Your baby's arms should not be restricted when they are able to roll over - this advice is the same for any form of swaddling you may be using. Around this time, you baby's startle reflex should have diminished.
The SWADDLE UP™ transition bag/suit is a great way to prepare your baby for the transition from being swaddled to 'arms-free' independent sleep.