Snugness is a measure of how closely a baby or toddler is "wrap" around by the baby carrier and how close the baby is against the baby wearer's body when carried. The closer the baby is to the baby wearer, the better the snugness factor. A baby carrier with a good snugness factor prevents the child from being "swung" around unnecessarily when the baby wearer is on the move. This is especially crucial when smaller babies are involved because sudden jerking movements can hurt the delicate neck and spine of the baby. Where snugness factor is low and the baby can "shift around" in the baby carrier, it also usually translates to higher chances of child falling from a baby carrier.
A baby carrier with a good snugness factor is also desirable from the point of view of the baby wearer. If a baby actualy "shifts around" in a baby carrier when the baby wearer is on the move, it means a constant changing of the baby's center of gravity. The baby wearer would experience increase stress on their spine and in serious case it may result in injury.
Some baby carriers may market the "extra spaces" in their carriers an advantage to keep the baby cool. Considering the risks involved, it is not a area to trifle with. Most good baby carriers are made from breathable materials anyway that are comfortable for babies to be carried for extended periods.
At Baby Slings & Carriers, we only recommend baby carriers with good snugness factor for safety reasons. In comparison, baby ring slings are a little more superior in snugness factor compared to baby pouches because they are adjustable. Our soft structured carriers are all ergonomically designed to hug the babies very closely and tight against the baby wearer's body at all times. When it comes to snugness, soft structured baby carriers is a lot more superior compared to hard baby carriers. This is certainly an area you should pay extra attention to when selecting your baby carrier.