We bought the SwaddleMe when it was difficult to bring our daughter to bed at night, so as to approximately 6-7 months. It is thus very well fallen asleep and has also much quieter us slept better. Previously she has with her arms always frightened itself and then became awake. I can only recommend to others who have difficulty falling asleep. My midwife had shown me with a cloth, but I have not managed to wrap it so tightly. The Pucksack holds together but beautifully appointed and keeps baby nice and warm.