Here is a heated blanket that you can take with you anywhere to keep you warm. The HEATWAVE Battery Powered Heated Blanket has a cordless design and 3 heating levels. It is rated for indoor and outdoor use. It has 100, 113, and 131F heat settings.
This 60 x 48″ blanket is made of premium polyester material. The battery lasts up to 3 hours depending on mode.
[where to get it] [official site]