Fleece electric blankets are one of the most comfortable types of electric blankets. Fleece is a plush, soft material preferred by most people for its comfort and warmth. Fleece electric blankets tend to get warmer than most other heated blankets. The only downside to fleece is that the fabric begins pilling over time. Purchasing a higher quality blanket and hand washing the fleece will help prevent the fleece from pilling and keep the blanket soft.