My ds has used the miracle blanket since about 2 months old. He would get out of every swaddle we tried. So, we stopped swaddling, because I was afraid of him getting the blanket over his face. He was waking like clockwork at night every 3 hours. I ordered the miracle blanket, and I'm not joking, the first night I used it, he slept the entire night. I mean, from around 10 pm to about 6 am. I thought it was a miracle!
Now, we still use it (although it's getting much too small), although I do leave an arm out for him to suck his thumb. He's also gotten proficient at rolling over, and when he does that the other arm comes out. But he falls asleep with both arms out on his tummy, and his body and feet are still in the blanket.
I would definitely get one! In fact, I asked my MIL if she could "copy" the one I have, only make it a bit bigger! :lol:
Good luck!