Soul™ Endless Promise® Synthetic Mummy Sleeping Bag

NEMO’s newest sleeping bag silhouette is now offered with aerospace-grade, recycled synthetic insulation for ultralight adventures in any climate. Inspired by the traditional tapered mummy bag, Soul has a sleek, streamlined shape that shaves excess material and weight wherever possible but still sneaks in plenty of comfort features. A mono-polymer design, Soul also meets our Endless Promise® standard and can be fully recycled at the end of its life — just send it back to NEMO, and we’ll handle the rest. Soul’s single, asymmetrical front zip integrates with our innovative Headwall™ internal draft guard to provide 360-degree protection. A plush, insulated collar, Headwall wraps around the back of the neck and cozily overlaps itself in front to efficiently block cold air while creating a uniquely comfortable experience. Balancing the front zipper is a single Thermo Gill™ vent, enabling fine-tuned temperature control. With both internal and external zippers, the Thermo Gill incrementally