Swaddling

Here is an article on swaddling lower limbs.
This is something which has been known for a little while. 
I still recommend wrapping the arms (with arms up) but not too tight until the startle reflex is not causing baby to wake.

https://www.smh.com.au/healthcare/doctors-warn-swaddling-trend-may-harm-babies-20170421-gvp9fn.html

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