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Title: Comfortable for baby and lets me sleep well too
Review: The size chart on Halo's website seems to be accurate to this product. We got the large even though she is just now 6 months old. She is nearly 30" in length and probably a little more than 20 lbs. It's a bit big even with a wash a dry, but I don't feel there is a danger of her head or arms coming out of the holes. And she's getting bigger at such a fast rate she'll probably outgrow it in another few months. Not sure how warm it'll be in winter, but I can always put her in thicker pyjamas. She loves cotton and hates fleece which is why we went with this sack. We haven't swaddled her since she was 1 week old, it's actually better not to swaddle, so we went for the arms free sack. Love the color, good for a boy as well.I definitely sleep better knowing she's not going to smother herself especially since she's now a pro at rolling over to her tummy.
