I heard that when your baby starts to roll over you shouldnt swaddle their arms because they wont be able to lift themselves up. Which makes sense. LO has been trying to roll over so i have been paranoid. Last night we decided to put her in the Halo sack but not put her arms in. Well it was pretty annoying because LO can't stop putting her hands in her mouth, so that wakes her up. It was a long night. Will she get used to it?