My baby was sleeping at night for an average of 2-3 hours at one time. The longest she ever slept was 4 1/2 hours. We swaddled her in regular receiving blankets, but she always broke lose, sometimes within minutes, but always within a few hours. On the first night of using the miracle blanket, she slept 5 1/2 hours and then another 4 hours. She has slept 7-8 hours on 2/4 nights thus far. I am very pleased.