Itâ€™s no fun trying to stuff your sleeping child like a burrito into a sleeping bag. Thatâ€™s why we made the easy-zip up Woobie. The search for the holy grail of little kids sleeping bags is over. The feature-packed Woobie keeps the little ones cozy in the great outdoors â€“ and indoors too. Itâ€™s the perfect starter bag for toddlers and younger children up to 4' tall. Double top zippers provide the wiggle room and ease to gently slide them in without a wink or whimper.