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With this sack, her arms are up but the mitten cuffs keep her from scratching her face, and she sleeps way longer stretches now. Definitely recommend for transitioning.","subreddit":"newborns"},{"type":"thread","title":"Safety discussion about transitional swaddle with arms up design","author":"firsttimeparent2023","ref_id":"r_e_2","thread":{"url":"https://www.reddit.com/r/NewParents/comments/qmioky/are_transitional_swaddles_really_safe/","title":"Are transitional swaddles really safe?","subreddit":"NewParents"},"excerpt":"I'm a little nervous about the SwaddleDesigns transitional sack because of the arm mobility issue. My baby rolls a lot and I worry that with the sleeves up and mitten cuffs closed, she can't use her arms to push up if she ends up on her tummy. We switched to the Zipadee-Zip instead, which seems safer for rolling babies. The SwaddleDesigns design might be okay for supervised naps or babies not fully rolling yet, but for overnight, I want full arm freedom. 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Some say the sleeves allow enough arm mobility for repositioning, but others caution that when mitten cuffs are closed, arm movement is restricted, making other brands like Zipadee-Zip a safer choice for active rollers."},{"evidence":["r_e_1"],"question":"How does the sizing run?","short_answer":"Sizing seems accurate based on weight, but some parents find the Large size (21-24 lb) works well for chunky babies starting at around 5 months."}]}}}}