Once baby starts to wriggle their arms and disturbing themselves (yet still not rolling) during rest time, Baby Studio recommends moving to the Baby Studio swaddlewrap. Maternal experts recommend swaddling for the perfect safe sleep. Please note: as soon as baby begins moving and rolling, swaddling must be stopped immediately. All blankets and other items within sleeping environment must be removed to avoid suffocation. Baby Studio recommends transitioning to the Baby Studio "Studio Bag" for a safer nights sleep.