TOG is a rating system that measures warmth and calculates how quickly a fabric uses heat. It is the standard when choosing the appropriate sleeping bag for your baby, depending on the ambient temperature in your nursery. We recommend a heavier TOG during cooler months and a lighter one during warmer months.
0.5 TOG: 23 - 26 °C / 74 - 78 °F
1.0 TOG: 21 - 23 °C / 69 - 73 °F