Western Mountaineering Summer Coupler

Western Mountaineering Summer Coupler is rated 4.25 out of 5 by 4.
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4.2 Star Rating
4.2
$59.95 - $64.95

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Product Description Item No.   10014361

Moosejaw Staff Pick - Erica, Moosejaw Secret Headquarters

The Western Mountaineering Summer Coupler is a great way to snuggle with your lover at the campground. All you need is two Western Mountaineering semi-rectangular bags and the Summer Coupler to get cozy at night. They're soft like sheets and hold your sleeping pads together, so you can wrap your arms around each other every time you hear a twig snap or animal huff in the night. Sweet dreams to your and your loved one.

FEATURES of the Western Mountaineering Summer Coupler

  • Turn any semi-rectangular Western Mountaineering sleeping bag into a comfortable Two-Sleep
  • Cotton tri-blend fabric has the same feel as bed sheets
  • Underside sleeve holds insulated pads in place

- + Product Specifications
Fabric Details: Cotton tri-blend
Disclaimer: We only ship this brand to US Addresses.
Gender: Unisex, Mens
Best Use: Mountaineering and Alpine, Ultralight Backpacking, Backpacking
Sleeping Bag Shape: Rectangular
Bag Weight (Regular): 1 lb, 4 oz
Zipper Side: Right

Sleeping Bags Size Comparison Charts

EXtremeLite Series Bags
Model Shape Size Shoulder Girth Hip Girth Foot Girth
MityLite Semi Rectangular 6' 3" 62" 59" 46"
HighLite Mummy Box Stitched 5' 6" 59" 51" 38"
6' 0" 59" 51" 38"
6' 6" 60" 52" 38"
SummerLite Mummy 5' 6" 59" 51" 38"
6' 0" 59" 51" 38"
6' 6" 60" 52" 38"
Tamarak Semi Rectangular 5' 0" n/a 58" 33"
MegaLite Mummy with Top Collar 5' 6" 63" 56" 39"
6' 0" 64" 55" 39"
6' 6" 65" 56" 39"
UltraLite Mummy with Full Collar 5' 6" 59" 51" 38"
6' 0" 59" 51" 38"
6' 6" 60" 52" 38"
AlpinLite Mummy with Full Collar 5' 6" 63" 56" 39"
6' 0" 64" 55" 39"
6' 6" 65" 56" 39"
VersaLite Mummy with Full Collar 5' 6" 62" 53" 39"
6' 0" 62" 53" 39"
6' 6" 63" 54" 39"
Microfiber Series Bags
Model Shape Size Shoulder Girth Hip Girth Foot Girth
Caribou MF Mummy Box Stitched 5' 6" 63" 56" 39"
6' 0" 64" 55" 39"
6' 6" 65" 56" 39"
Alder MF Semi Rectangular 6' 0" 62" 59" 46"
6' 6" 62" 59" 46"
Sycamore MF Semi Rectangular 6' 0" 62" 59" 46"
6' 6" 62" 59" 46"
Ponderosa MF Semi Rectangular 6' 0" 67" 64" 48"
6' 6" 67" 64" 48"
7' 0" 67" 64" 48"
Apache MF Mummy with Full Collar 5' 6" 59" 51" 38"
6' 0" 59" 51" 38"
6' 6" 60" 51" 38"
Badger MF Mummy with Full Collar 6' 0" 66" 57" 41"
6' 6" 67" 58" 41"
7' 0" 67" 58" 41"
Antelope MF Mummy with Full Collar 5' 6" 62" 53" 39"
6' 0" 62" 53" 39"
6' 6" 63" 54" 39"
Sequoia MF Semi Rectangular with Full Collar 6' 0" 66" 61" 48"
6' 6" 66" 61" 48"
Kodiak MF Mummy with Full Collar 6' 0" 66" 57" 41"
6' 6" 67" 58" 41"
7' 0" 67" 58" 41"
Bristlecone MF Semi Rectangular with Full Collar 6' 0" 69" 61" 48"
6' 6" 69" 61" 48"
Lynx MF Mummy with Full Collar 5' 6" 61" 54" 39"
6' 0" 62" 54" 39"
6' 6" 63" 55" 39"
Puma MF Mummy with Full Collar 5' 6" 62" 55" 39"
6' 0" 64" 56" 39"
6' 6" 66" 57" 39"
Gore Windstopper Series Bags
Model Shape Size Shoulder Girth Hip Girth Foot Girth
Apache GWS Mummy with Full Collar 5' 6" 59" 51" 38"
6' 0" 59" 51" 38"
6' 6" 60" 52" 38"
Badger GWS Mummy with Full Collar 6' 0" 66" 57" 41"
6' 6" 67" 58" 41"
7' 0" 67" 58" 41"
Antelope GWS Mummy with Full Collar 5' 6" 62" 53" 39"
6' 0" 62" 53" 39"
6' 6" 63" 54" 39"
Sequoia GWS Semi Rectangular with Full Collar 6' 0" 66" 61" 48"
6' 6" 66" 61" 48"
Kodiak GWS Mummy with Full Collar 6' 0" 66" 57" 41"
6' 6" 67" 58" 41"
7' 0" 67" 58" 41"
Lynx GWS Mummy with Full Collar 5' 6" 61" 54" 39"
6' 0" 62" 54" 39"
6' 6" 63" 55" 39"
Puma GWS Mummy with Full Collar 5' 6" 62" 55" 39"
6' 0" 64" 56" 39"
6' 6" 66" 57" 39"
Bison GWS Mummy with Full Collar 6' 0" 64" 55" 39"
6' 6" 64" 55" 39"
Rated 5 out of 5 by from Like two bugs in a rug! Oh, my! I can hardly wait until warmer weather, when I can use this for two with my new Western Mountaineering bag. A great way to use a cold weather bag in the summer months. Works either as a bottom layer or a top layer. Many years ago I had a similar product from England, but I didn't discover this one until just recently. These Western Mountaineering folks know what's important.
Date published: 2005-11-15
Rated 3 out of 5 by from Idea is great but... The idea of this coupler is awesome. However, it doesn't fit my Thermarest pad, let alone two. Material is okay, could be a lot softer. Maybe I'm just used to the softness of my sleeping bag underneath me. Also, it's a bit heavy for the type of hiking I do.
Date published: 2012-07-15
Rated 4 out of 5 by from UTILITARIAN WEIGHT SAVER Cut a full kilo from your total carry weight with this handy item. It basically holds an unzipped bag in place where the down does the most good: on top where it can attain full loft. A good complement to the WM Ponderosa Not cheap.......TIM
Date published: 2011-01-26
Rated 5 out of 5 by from Must have for couple hikers/campers What an awesome purchase. We only use one bag plus this coupler. We are warm all night and comfortable. There is plenty of room for the two of us using the coupler!
Date published: 2007-07-25
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Four questions: 1. Is it enough to use one sleeping bag together with the coupler? 2. Does it matter if your sleeping bag has a right or left side zipper? 3. How wide are the underside sleeves? 4. Does the coupler fit with a WM Terralite?

Asked by: Pernillan
Hiya, thanks for your questions! I hope you are ready for information overload! Here are your answers: 1. It depends on the situation. There are many variables, such as conditions, which bag is used with the coupler, what pads you are using (and whether or not you are using the pads effectively-i.e. not blowing moist air into the valves when the nightly low temperatures are likely to drop below freezing), metabolism, and how warm or cold the two people tend to sleep. 2. The summer coupler is designed to be used with hoodless semi-rectangular bags like the Ponderosa, the Alder and the Mitylite. For these models, there are no left or right hand zippered options, they are all made as left zippered bags but they can be flipped over if someone wants to use them with the zipper on the opposite side since there is no hood. The hooded semi rectangular bags such as the Terralite, Sycamore, Sequoia, Bristlecone, or Cypress can also be opened up and mated to a summer coupler, however, there is going to be more down distributed on the top of any bag which has a hood. (60% of the down will be on top and 40% of the down will be on the bottom). When the bag is flipped over, one side will have more down than the other but you can shift the down around within the bag to even it out. These bags are offered in either a left or a right hand zipper and either will work when the bag is opened up and zipped to a summer coupler. The Bristlecone and Cypress are colder weather bags so they have a block of netting at the side to create separate down chambers for the top and bottom of the bag. In these two models the down distribution cannot be adjusted so one person would have less down above them than the other (and since the bottom of the bag is the side with less down that person would also have a hood over their face when the bag is opened up and mated to a coupler.). Also the zipper lengths on the hooded semi-rectangular bags is slightly different on the bottom zipper than our hoodless semi-rectangular bags so there is a little bit of extra coupler that remains as extra material at each side towards the bottom. 3. The bottom edge measures 24” across each side to the center stitch line. The lower sleeve panel measures 22” across from each side to the center seam. 4. The Terralite can be used with a summer coupler however, as explained in the answer for question #2, the bottom (vislon) zipper length is a little shorter on the hooded semi-rectangular bags than it is on the bags without hoods. This means that there will be a little bit of extra coupler at each side just below where the coil zipper ends and the top of the vislon zipper finishes. Hope this helps!
Answered by: Rocko Gigsby
Date published: 2016-09-23

Does this coupler work with an REI Joule bag? What kind of zipper is on the coupler?

Asked by: JoVan
Hey there, Thanks for reaching out to us! Did you know my nickname in high school was 'coupler'? JK, it was 'Goldfinger'. Now, while I'm not super familiar with REI bags, I know that this will not work with mummy bags. It'll work with hoodless Western Mountaineering semi-rectangular bags, 2000 model year or later. And that zipper will be a full-length #5 YKK Zipper. Hope this helps you out. Hugsies!!
Answered by: Rocko Gigsby
Date published: 2016-08-27

Will this western mountaineering summer coupler fit a western mountaineering sycamore sleeping bag?  Thank you.

Asked by: Steve
Yes, the Western Mountaineering Sycamore sleeping bag is zip-in compatible with the Summer Coupler.
Answered by: Rocko Gigsby
Date published: 2016-02-01
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