Sleep Bags are a safe alternative to a blanket in the crib and helps reduce the risk of SIDS. Our sleep bags are made of 97% Rayon Made from Bamboo so it feels buttery soft and breathable. It features a J-shaped double zipper, making night time diaper changes a breeze. At 1.0 TOG, it’s the ideal warmth year-round. Recommended for nursery temperature of 21 – 23 C / 69 – 73 F