Super soft baby summer sleeping bag made of 100% cotton. The baby sleep sack is a musthave for your baby to have a good sleep. The Hopper sleeveless baby sleeping bag is the most breathable and airy sleeping bag, which makes it very comfortable during summer. The perfect fit of the lightweight sleeping bag ensures safety for your baby. Not only convenient for your baby's sleep, but also for your own sleep. See here all our summer prints and colours.