Are you having trouble putting baby to bed at night? Then you have to try our sleep bag. So many moms report that it helps their baby sleep through the night. And since it's the safest alternative to a blanket in bed, it helps reduce the risk of SIDS too. That's probably why it was voted the No. 1 Wearable Blanket by The Bump (2019). Our sleep bag is made of 97% rayon of bamboo so it feels buttery soft and breathable. It features a J-shaped double zipper, which makes it super easy to use. 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 their nursery. We recommend a thicker tog during cooler months and a thinner size during warmer months.