frankly , I can not get the hang of traditional swaddling . I often find the blanket unravel in the crib , my newborn son flail he arm , cause I panic that he would suffocate on the material . so I decide to try the SleepSack Swaddle . it be easy to put on . no sleeve and you do not have to slip it over a baby 's head . since it be like a sleep bag , I put he on top , put he arm through the hole and zip the zipper . then I wrap the ` wing ' of the SleepSack Swaddle around he middle , make sure he arm be by he side first so they would be cover by the wing of the SleepSack Swaddle . when I reach into he crib a couple of hour later , he be tuck in the same way he go in . no loose end , no flap arm or fabric cover he face . so great ! the only issue be like that of bib : the velcro can really get tangle in the wash so make sure to zip and velcro before wash . otherwise , you get the amazing benefit of swaddling , freedom of leg movement which be important for hip safety , and a quality product . a must have for all parent and it be great that the line grow with you baby too .