DS1 was pretty easy to get out of the wrap at an early age and in a sleeping bag from 6ish months but DS2 was a little trickier. I warpped with a cot sheet though so i could really tuck and wrap him quite well. Rolling was never an issue for us and DS2 was wrapped until after 12months. It took a little bit to get him out of it but he loved it and he slept well. DD is the same, wrapped nice and tight. She was in a sleeping bag but nights were really unsettled, since wrapping with the sheet again we've had a lot better quality sleeps from her.