Brand: Nested Bean Scientifically designed for self-soothing and sounder sleep. The gently weighted Zen Sleep Sack helps your baby sleep through every sleep phase. Designed to help babies self-soothe and learn to fall asleep independently, the Zen Sack eases the transition from swaddle to sack, and prevents sleep regressions and disruptions: "A sleep training essential".Features:▪ Two-way zipper makes diaper changes a breeze▪ Zipper covers, cuddly seams and soft tags protect your baby’s skin▪ Can be worn backwards by tummy sleepers who can roll independently▪ Grow-with me adjustable snaps▪ 0.5 TOG comforts in all weathersSafety:▪ Mimics your reassuring palm and calms with only a few ounces▪ Applies gentle pressure that is tested for breathing safety▪ Adheres to all known CPSC safety requirements▪ Tested for suffocation hazard, pulmonologist verified▪ Hip-healthy. Does not hinder mobility▪ The safer alternative to all-weighted blankets