The site says: "after exhaustive movie viewing research and analysis ThinkGeek Labs has isolated the exact synthetic compounds needed to re-create Tauntaun fur". "This high-quality sleeping bag looks just like a Tauntaun, complete with saddle, printed internal intestines, and a plush lightsaber zipper pull".
If you want to get one for yourself, it'll cost you $100 (about £60) plus postage. Be quick, though - there's very limited numbers available and customers are only able to buy a maximum of two each. ThinkGeek promises that if you order now, it'll ship before 25 November - whether that'll be in time for Christmas post to the UK is unclear.