11 Of The Warmest Sleeping Bags For Cold Weather Camping Cold Weather Sleeping Bag Filled With Hollow Cotton To Keep Warm (2L Heated Sleeping Bag Best Cold Weather Sleeping Bag Double Sleeping Bag Cotton Flannel, Waterproof Outdoor Backing Sleeping. Brand Name: Hewolf Comfortable Temperature Scale: [0~ 10] Single Double Sleeping Bag: Splicing Single Sleeping Bag Applicable People: Adult Length: Standard (Suitable for 1. 8 m Height and Below) Season: Spring & Autumn Season: Winter Size: 235X130cm Model Number: B1 496 Type: 3 Season Sleeping Bag Temperature Scale Category: Spring and Autumn Sleeping Bag is_customized: Yes Category: Cotton Sleeping Bag Filling: Cotton Fabric: Terylene Style: Hybrid Type