The only thing cozier: the womb. Down Alternative fill wrapped in silky soft bamboo rayon keeps your little nugget secure in the comfiest baby sleep bag while our one-of-a-kind WONDERZiP® keeps them covered, even during diaper changes. With this 2.6 TOG sleep bag, your little one will feel like they're getting a giant, Gunamuna 2.6 Tog Sleep Bag- Shine