I love these sleepsack . I have both the fleece and cotton version . they be a excellent , safe alternative to use blanket in the crib . blanket be not the best choice these day as they be not safe -lrb- increase sid risk -rrb- and can easily be kick off , leave baby cold and cry . these be a natural next step to use after my baby outgrow the swadde -lrb- around 4 month -rrb- . I plan to keep get larger size as my baby grow . I love this product and would suggest it to all parent and caregiver out there .