Never used. This Magic Sleepsuit will help your little one feel cozy and secure when transitioning from the swaddle and beyond. The soft, breathable cotton inner and outer layer with a layer of polyfil in between provides just enough security and comfort to muffle your baby's startles and help them drift off to sleep, and stay asleep. The scooped neckline keeps fabric away from baby's face, and double zippers make for smooth diaper changes. The Magic Sleepsuit is to be used for back sleeping in the crib, the recommended safe sleep position.