If you’re struggling to get baby to sleep through the night, we recommend trying our sleep bag. Many moms have reported that it helps their baby sleep through the night, and since it's the safest alternative to a blanket, it also helps reduce the risk of SIDS. Voted the No. 1 Wearable Blanket by The Bump in 2019, our sleep bag is made of 97% bamboo rayon. The bamboo fabric is breathable and buttery soft to the touch. This sleep bag also features a J-shaped double zipper, which makes it super easy to use. At 1.0 TOG, it provides the ideal warmth all year round..