Flannel blankets, on the other hand, are made from cotton fibers woven together to create a soft, smooth texture. Flannel blankets are usually lighter than Sherpa blankets and provide a more breathable cover. They are often used as a light cover in the summer months or as an extra layer of warmth in the winter months. Flannel blankets also tend to be slightly less expensive than Sherpa blankets, making them a great budget-friendly option.