Here is a heated sleeping bag with 3 temperature settings that keeps you warm in cold, wet conditions. The UNP Heated Sleeping Bag has a 210T Nylon fabric and 190T polyester filling. It has 3 active heated pads powered by a 5V power source.
This heated sleeping bag weighs 4.4lbs. It is water and wind resistant. Measuring 87 x 36″, this has plenty of room for you to sleep in.
[where to get it]