My daughter-in-law already has one that I bought her, and I am buying another one to keep at my house. I wish that I had had one of these for my babies. It really does seem like a miracle how well it works sometimes. The other day, I just could not get him to quit crying no matter what I did, his mom came swaddle him in the blanket, that was the end of the crying and he slept for 3 hours! so now I want one to keep at my house.