BETTER THAN EVER: Our beloved baby Viscose baby sleep sack, the epitome of comfort for your little one. Crafted with care, it's a cozy cocoon designed to cradle your baby in warmth and security, guiding them into a restful slumber that lasts all night. Simplifying nighttime diaper changes and ensuring optimal temperature regulation, its heavenly softness invites your touch, offering unparalleled comfort for your precious bundle of joy. LUXURY-SOFT FABRIC: Made from our signature 96% Viscose fabric & 4% Spandex. Filling with 100% polyester wadding (Oeko-Tex 100 Class 1 Baby Certified free from any harmful chemicals or substances). Note: 1.0 TOG, 2.5 TOG with wadding, 0.5 TOG without. CHILD-SAFE ZIPPERS: Features FeatherGlide technology to make the 2-way J-shaped Double-direction Zipper. Opens like a book when unsnapped and unzipped for easy quick diaper change. SIZE-FITTED GUREENTED: Our sleep bag is available to choose from 0-3-6-12-24-36-48 month range of age so you can choose the perfect size fit for your little one. Keep your baby safe and secure at night with our smartly designed new wearable blanket. When worn over a onesie or pajamas, our sleep bags keep newborns and infants comfortably warm all night long.