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Behind the Gear
WarmZip™: Unzipping Sleping 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).
All Therm-a-Rest Gear Content
What is R-Value?
Choosing the type of sleeping pad you want, you’ll want to factor in how warm a pad is. You can do this by comparing a pad's R-value.
What is R-Value?
Choosing the type of sleeping pad you want, you’ll want to factor in how warm a pad is. You can do this by comparing a pad's R-value.
The ASTM R-Value Standard: Rating Sleeping Pad ...
Learn about the new ASTM testing standards for sleeping pads and what it means for your current and future Therm-a-Rest pad’s R-value.
The ASTM R-Value Standard: Rating Sleeping Pad ...
Learn about the new ASTM testing standards for sleeping pads and what it means for your current and future Therm-a-Rest pad’s R-value.
How Warm Is A Sleeping Pad? R-Value vs. Degree ...
The warmth of your pad is crucial to resting better, so should you look at a R-value or a degree rating when selecting your pad? We dive into the science...
How Warm Is A Sleeping Pad? R-Value vs. Degree ...
The warmth of your pad is crucial to resting better, so should you look at a R-value or a degree rating when selecting your pad? We dive into the science...