To "roll" when swaddling refers to tucking the baby's legs up gently and then rolling or folding the swaddle blanket snugly around them. The purpose is to mimic the feeling of being in the womb.
Here's a simplified breakdown based on the reference:
- Tuck the baby's feet up nice and tight so they feel secure, like they're back in the womb.
- Pull one side of the swaddle blanket over the baby.
- You can “roll up a little bit," which refers to tightening the swaddle by rolling the fabric as you tuck it in to secure the baby.