Where does a blanket get its warmth?

A blanket gets its warmth primarily from its insulating properties, which trap body heat and prevent it from escaping. The materials used, such as wool, fleece, or down, have fibers that create air pockets, providing thermal insulation. Additionally, the blanket's thickness and the type of weave can enhance its ability to retain warmth. Ultimately, a blanket acts as a barrier between the body and the cooler air, helping to maintain a comfortable temperature.