Comparison Guides
All Therm-a-Rest Gear Content

Questar™ - The Best Down Sleeping Bag?
What makes the Questar the best down sleeping bag in its class? Frankly put, its combination of technical performance and remarkable comfort means you will be pulling it out of...
Questar™ - The Best Down Sleeping Bag?
What makes the Questar the best down sleeping bag in its class? Frankly put, its combination of technical performance and remarkable comfort means you will be pulling it out of...

Choosing the Right Fit for Sleeping Bags
Along with your sleeping bag's EN Temperature Ratings, a proper fit is critical to your bag's warmth, comfort and overall performance. A bag that's too big will allow to move...
Choosing the Right Fit for Sleeping Bags
Along with your sleeping bag's EN Temperature Ratings, a proper fit is critical to your bag's warmth, comfort and overall performance. A bag that's too big will allow to move...

Understanding EN/ISO Sleeping Bag Temperature R...
Ever wonder how a sleeping bag rating correlates to performance at camp? Before 2005, it was common for campers to have cold nights due to the inaccuracy and variety of...
Understanding EN/ISO Sleeping Bag Temperature R...
Ever wonder how a sleeping bag rating correlates to performance at camp? Before 2005, it was common for campers to have cold nights due to the inaccuracy and variety of...
Behind the Gear

WarmZip™: Unzipping Sleeping Bag Temperature Ratings
WarmZip™ helps you regulate the Boost 650 bag’s warmth by giving you the ability to manipulate its shape and the distribution of its insulation. Changing the sleeping bag’s shape changes its thermal efficiency, or its ability to retain body heat.

Behind the Gear: The NXT Generation of XLite™ & XTherm™
the two most enduring models of the NeoAir lineup have been radically improved. Presenting the NeoAir® XLite™ NXT and the NeoAir® XTherm™ NXT, the next generation of air pad technology. Learn how we added thickness and warmth while reducing weight (in the XTherm) and noise (in the XLite).