Tanga has a huge selection of NCAA Team Plush Blankets for $37.98 – Shipped ($32.99 + $4.99 shipping)
From the looks of the pictures, these are high-quality throws (60″ × 80″ in size, so they will fit on a full/queen bed) and are guaranteed to keep you warm during the entire season.
(PS: And would also make a nice Holiday gift for the sports loving fan who likes naps.)