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UltraLight SI Mat

Lightweight, simple & sturdy

$69.95 – $99.95

Size Guide
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Sleeping Bag Temperature Ratings Explained

The EN Rating scale is a scientific test to determine the warmth of a sleeping bag. Unisex sleeping bags list the Lower Limit which is the lowest temperature rating that an average male sleeper would be comfortable in.  Our women’s sleeping bags list the Comfort Limit, which is the lowest temperature rating an average female sleeper should be comfortable. The comfort and lower limit temperature ratings are listed in the features table on the product page. 

For example, a unisex sleeping bag that shows a lower limit of 23ºF means a man should be comfortable down to air temperatures of 23ºF while a woman would be comfortable down to the air temperature of 30ºF, the comfort limit. Men and women should always sleep in a layer of long underwear and use a sleeping mat.


Here’s a basic categorization of appropriate use, based on temperatures:
Summer:   >+35ºF
3-Season:   +10 to +35ºF
Winter:   <10ºF


There’s a huge variety of factors that can impact sleeping bag warmth, so these ratings are not guarantees. We always recommend choosing a bag that is a few degrees colder than you plan on going out in (choosing a 23ºF bag for 27ºF nights). If you have any questions about which temperature you should select, or how to improve your warmth in a sleep system, reach out to us on our contact page any time.

$69.95

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Description

For the ultralight enthusiast, the Ultralight™ Self Inflating mat will add the promise of a comfortable sleep to your pack, and not a whole lot of weight or bulk. Delta Core-V™ technology is used to remove small sections of foam without sacrificing comfort. The silicone grip print embossed on the mat ensures you and your sleeping bag stay on the mat. For the ultralight adventurer, pack up is super easy with the patent pending multi function valve that allows you to roll up the mat without air trying to sneak back in as you go. Ideal for gram counters who like to sleep comfortably.

Highlights

Weight

Regular: 19 oz ≈ Lighter than a carton of eggs

Packed Size Comparison

Similar to a roll of paper towels

Performance

Summer Mat: Perfect for any summer adventure, regardless of altitude.

Durability

Woven 30D polyester face fabric chosen for its light weight and strength

Features

  • R-Value of 2.6
  • 1 inch thick.
  • Utilizes Delta Core-V technology, which keeps body contact areas warmer while still offering great support and pack-ability.
  • Patent-pending multi-function valve twists over to allow the mat to be rolled tightly without fighting re-inflation as you go.
  • Silicone print prevents your sleeping bag from slipping on the mat, or the mat slipping on the tent floor.