Shopping cart

  • No products in the cart.

COOLMAX Fitted Sheet

Turn your mat into a bed


Sleeping Bag Temperature Ratings Explained

The EN Rating scale is a scientific test to determine the warmth of a sleeping bag. The test produces a Lower rating (for male sleepers) and a Comfort rating (for female sleepers). Both are listed in the features table on the product page.

A unisex sleeping bag with a Lower limit of 14ºF means a man should be comfortable down to air temperatures of 14ºF. The same bag will also have a Comfort limit, in the realm of 27°F, so a woman would be comfortable down to an air temperature of 27ºF. These ratings require a sleeping mat with an R-Value appropriate for expected ground temperatures – without this, the sleeping bag itself is unlikely to keep the sleeper warm enough.

A variety of factors impact sleeping bag warmth - the above temperatures are merely guidelines, not guarantees. It’s important to think of a sleeping bag, an appropriately insulating sleeping pad and a liner as a sleep system. For example - if you plan on sleeping in nighttime air temperatures of 27ºF / -3°C, choose a bag with a gender-appropriate rating of 23°F / -5°C, plus a sleeping mat with an R-Value of 2.5 to 3, and consider a Reactor thermal liner.



Our COOLMAX® fitted sheets allow you to sleep comfortably on your sleeping mattress in warm environments.

REGULAR: fits small and regular sized Sea to Summit pads.

LARGE: fits all rectangular and large Sea to Summit pads.


  • Wicks moisture for a more comfortable night's sleep
  • One continuous drawcord with barrel locks at either end to secure onto an air mattress
  • Machine washable and quick drying

Technical Features

Coolmax® Fabric

Coolmax® Fabric is an amazing moisture-management fabric originally developed by DuPont. Coolmax® wicks moisture away from your skin, which prevents that uncomfortable feeling of clamminess in hot and humid climates. The stretch-knit fabric moves with you as you sleep, providing an unmatched level of comfort, whether you’re in a sleeping bag, a hostel or hotel, or on a friend’s couch.

Tech Specs

Product Details

Best Use
Backpacking and camping in warmer climates
Comes With
Stuff Sack
COOLMAX fabric that wicks moisture away from your body
Regular: small and regular pads / Large: all rectangular and large pads
coolmax-fitted-sheet-regular.svg coolmax-fitted-sheet-large.svg
72 x 21.5 in / 184 x 55 cm
5 oz / 145g
79 x 25 in / 201 x 64 cm
6.5 oz / 185g


Scroll To TopScroll To Top