I wish I knew sooner about this product. It was very hard for us to "get out" of a miracle blanket because the baby had eczema and would scratch his face till blood. We kept swaddling him when he completely outgrew the blanket, and it was getting harder and harder. I ordered online some sack from Australia where the baby could stretch his arms, but could not take them out. The sack did not work. The baby could not sleep in it. And we have a good sleeper that goes straight for 12 hours of sleep at night. Then I saw this product recommended at some forum for babies with eczema, and I ordered two. I ended up ordering two more!! The baby slept in it from the first time with no problem. He had some flexibility so his arms probably did not fall asleep, and he would wake up always happy! All I can say that the have a deluxe version that has a better quality fabric, so i would opt out for that one instead of this.