Introducing the Norani Baby One & Done Sleep Sack™ – the all-season sleep solution for your child! Say goodbye to switching between sacks for different weather. This innovative sleep sack starts at 1.0 TOG and includes a removable 1.5 TOG insert, transforming it into a 2.5 TOG for extra warmth when needed. Perfect for any temperature, it keeps your child cozy year-round. Simplify your life with one versatile, safe, and easy-to-use product.