Designed for safety, comfort, and convenience, the Newcastle Sleep Sack is the perfect choice for your little one's sleep routine. With a lightweight, sleeveless design and a downward zipper for easy diaper changes in the middle of the night, your baby can stay snug and secure while they sleep through the night. Plus, with multiple size options to choose from based on your baby's age and growth, you can rely on the Newcastle Sleep Sack to provide a comfortable and safe fit as your baby grows.