When it comes to newborn essentials, organic baby sleep sacks and gowns definitely make the cut. These wearable blankets eliminate the need for extra material being in baby's bed while still keeping your little one warm and cozy. Organic cotton is breathable and free from flame retardants. Baby gowns usually have an elastic bottom hem whereas the alternative baby sac style tends to use a zipper or snaps, both types are equally easy to access for late night changes. In fact, having a couple of each is probably the best bet so make sure to have a few styles on your baby's organic registry.