Western Mountaineering Everlite Sleeping Bag

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The Western Mountaineering Everlite is a versatile, lightweight and compact mummy-cut sleeping bag, with a full length separating zipper.

Western Mountaineering says

When you need to extend the range of your sleeping bag system, play it safe and carry our 14 ounce EverLite. This mummy-cut, box stitched, sewn-thru is made for efficiency and versatility.

There is no no foot box and it features a very lightweight and compact (yet full length) YKK size #3 coil zipper.

This design allows the bag to be opened up completely to use like a tapered blanket for car camping or threaded over a hammock and zipped up to provide insulation all around your body. Both the top and bottom sections are open and feature and adjustable draw closure.

This bag can also be used as an overbag with another two or three season mummy to create a system for camping in colder weather.

Testing has shown that the EverLite can add about 10° F of additional warmth when used properly as an overbag.

Available in two lengths, each with different girth dimensions.

Our Verdict

Western Mountaineering down gear has an awesome reputation in the US and that reputation is beginning to build on this side of the pond. Very high quality materials design and construction results in the lightest bags available for a given warmth.  

An example of their attention to detail is their quoted 850+ fill power down used in all their bags: WM quote this figure even though their down generally gets higher ratings in official tests this is because they feel that the official pre-testing preparation enhances the down quality!

Features

• Sewn-Thru Box Construction
• Full length zip
• Footbox is open, can be closed with drawstring
• Can be opened fully to be used as a down blanket

Specifications

• Shape: Mummy (w/ full collar)
• Rating: 7°C / 45° F *
• Loft: 7.5cm / 3″
• Highest Quality minimum 850+ fill power down

Regular

• Length: 180cm / 6″
• Weight: 416g
• Fill weight: 185g
• Packed size: 25 x 13cm
• Internal shoulder girth: 152cm / 60″
• Internal hip girth: 140cm / 55″
• Internal foot girth: 99cm / 39″

Long

• Length: 200cm / 6’6″
• Weight: 490g
• Fill weight: 225g
• Packed size: 25 x 13cm
• Internal shoulder girth: 165m / 65″
• Internal hip girth: 152cm / 60″
• Internal foot girth: 107cm / 42″

* Western Mountaineering state: ‘We independently verify own temperature ratings through our own testing, customer feedback and design knowledge. Most of the items in our catalog we have been making for years, which means we have lots of prior knowledge from everyday consumers on what ratings are accurate. We have also EN tested our bags. In every case the EN rating is lower than our posted rating. This means our ratings are more conservative. We do this to ensure that almost everyone will be happy in our bags at the temperature we publish.’

More About Western Mountaineering:

• Western Mountaineering Construction
• Western Mountaineering Materials

Help and advice:

• The Ultimate Guide to Lightweight Sleeping Bags
• Time-Saver Guide to Choosing a Sleeping Bag
• The EN13537 Standard
• All About Down