The Baby deedee Sleep Nest Lite is an all year lightweight sleep sack for infants and toddlers 0-36 months. Our sleeping bags are made from 2 layers of soft Indian cotton jersey. These baby sleep sacks are perfect for Spring, Fall and warmer climates. Unique shoulder snaps and oversized reverse zipper make it easy to place baby into the sleep nest, even while sleeping, in just 2 easy snaps. Cozy and soft, these cocoon shaped sleeping sacks are comforting and will quickly become part of your baby's bedtime routine.