The TOG rating is a warmth indicator designed to help you select the right sleeping bag for your baby, ensuring they stay comfortable throughout the night. The TOG number, along with the room temperature, will guide you in choosing the appropriate clothing for your baby to wear while sleeping. For extra safety and comfort, the zip slider is positioned at the bottom near the baby's feet, rather than close to their face. This sleeping bag is available in three sizes: T0 = 63.2 cm (newborn-6 months), T1 = 77.9 cm (6-18 months), and T2 = 91.9 cm (18-36 months), providing the perfect fit for your little one at every stage.