Qutewarm Electric Heated Sleeping Bag Mummy Outdoor Lightweight Portable Waterproof Comfort Temperature Range 30~60?F 5V 2A Heated, Perfect for Adults Camping/Hiking (Brown)FIRSERMO Sleeping bags are designed to "warm up" the bag before sleeping, and make it warm & comfortable. Size: 88.6x31.5 in Weight: 4.4lbs Comfort temperature range: 60?F (15?C..