Shop here top baby sleeping bag and swaddle suite of Ergobaby. These sleeping bags designed to grow with your baby. Ergobaby swaddler is easy to use and keep your baby sleeps longer, safer and more peaceful. Ergobaby's Lightweight Swaddler is made of extra airy, breathable cotton-poly knit. Ergobaby's on the move sleep bag is a 2-IN-1 wearable blanket made with ultra-soft and breathable cotton that keeps your baby cozy and snug both while asleep and out of bed.