Head over to Amazon to snag a great deal on the Mountain Trails 25-Degree Sleeping Bag for $19.02 (Orig. $37.96). It is the lowest price it has ever been and has excellent ratings (4.4 average).
It is filled with 5 lbs of non-allergenic Insul-Therm insulation and, according to the reviews, it is spacious and perfect for keeping warm in temperatures higher than 25 degrees.
Learn more about the deal here.