K.N.
We swaddled until she grew out of her swaddler blanket at about 5 months. She kept kicking out of it and by morning her hands were free and she was waving her arms around. My first thought was to buy a bigger swaddling blanket and I did order one, but by the time it arrived, she had adjusted to sleeping without it. She slept through the night.
Then she learned to roll over onto her stomach. She would roll in the middle of the night. At first she would get stuck there and cry. We tried using a wedge to keep her on her back, but she usually found a way to get onto her stomach eventually. Again, she adjusted and it seemed she preferred to sleep on her stomach anyway. She's a restless sleeper and winds up in all sorts of positions, but she usually still sleeps through the night despite the commotion.
Now that it's getting colder at night we put her in footie pjs and then put her in a sleep sack.