Does anyone swaddle their baby then put them into a baby sleeping bag? It's going into autumn here and we're going through a cool night period and I want to swaddle my 14 week old but also keep her warmer than just using a blanket. The swaddle we use is a stretch t shirt fabric with a zip up the centre and she has to keep he arms crossed on her chest or down by her sides. The sleeping bags have a neck hole and arm holes and a zip down one side. I guess I am worried if we put her in the sleeping bag in the swaddle she might wriggle down and the sleeping bag fabric will come up over her mouth. Is she too small? I don't really get it. What are my options? What did you do?

Also she is in long sleeve onesies for night time.

If we put her in the sleeping bag without the swaddle she tends not to sleep as well because she can thrash about with her arms being out and wakes herself up.