Product Overview

Mountain Hardwear bag expander

The Mountain Hardwear Sleeping Bag Extender is the perfect solution for campers who need just a bit more room. Whether you're layering up for a cold night or simply want more freedom to move, this extender zips easily into compatible Mountain Hardwear mummy bags, giving you extra width without compromising warmth.

Made with lightweight, durable materials and designed to maintain the bag’s thermal efficiency, the extender helps eliminate that “too-tight” feeling. Ideal for broad-shouldered sleepers, side sleepers, or anyone who values comfort on backcountry nights.

Key Features