What is it about Dream Jamms Bamboo? Our bamboo fabric stays about 3 degrees cooler than cotton on average. It's breathable, thermo-regulating, moisture absorbing and hypoallergenic. It's great for kids with eczema. It's great for hot sleepers and sensitive skin. In warm, humid weather, bamboo won't stick to your baby's skin. It's sure to keep your babe drier, cooler and more comfortable year-round!