Official Licensed Partner of DisneyThe Disney Princess Milk Snob Sleep Bag is the softest, coziest blanket alternative for babies. This sleep sack is the perfect weight to keep your baby comfortable all night long (so You both can get more sleep!).What Is Tog? Tog is a rating system that measures warmth and calculates how quickly a fabric uses heat.not Sure If It Fits? A good test is to make sure the neckline isn t able to be pulled over your baby s head or around their face.