Who knows. ... You just might end up using this setup at home, too.

Just as a featherbed adds the ultimate luxurious touch to a well-appointed bed, the Therm-a-Rest Down Coupler sends your outdoor sleeping experience over the top. This coupler, which is sized to mate any two sleeping pads up to 30 inches wide, is stuffed with 650-fill down for unprecedented comfort and warmth. Perimeter snaps accept Therm-a-Rest down comforters and blankets to top off your best outdoor night ever.

  • Regular: 40 x 72in (102 x 183cm), 1lb 2oz
  • L: 50 x 77in (126 x 196cm), 1lb 7oz
  • XL: 60 x 77in (152 x 196cm), 1lb 11oz

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Here's what others have to say...

I want to use Therm-a-Rest Down Coupler...

I want to use Therm-a-Rest Down Coupler XL size with Mongo King Mattress XXL size (31'' width, 80'' length, 4'' thickness) - is that possible?

Best Answer Responded on

I think the Coupler is going to be too big. The regular is 42 x 72in. It will fit for length but hang over on the side. Ive scoured the site and it seems like you are going to have something slightly narrow or something too wide. Depends on preference with what you can deal with.

Responded on

I noticed two votes for the best answer (Bill Porreca).

However, "Coupler" means to be able to connect two mattresses together and make it "double-bed" for the couple. XL size of Coupler is 60 inch width, for two 30-inch mattresses.

Will this fit a 3.5 inch thick pad?

Will this fit a 3.5 inch thick pad?

Responded on

That should work just fine as the specs for the coupler on the Thermarest site say that it can take any thickness and places a restriction only on the width.

3 5

very thin

  • Gender: Male
  • Familiarity: I returned this product before using it

I bought this item thinking it would make my mattresses a little more comfortable by adding some loft. Unfortunately, this is very thin and only has about 1/2" of loft, which compresses to nothing when you lay on it. I could see the coupler being a benefit in the summer as the bottom part of a sleep system but don't see it adding much warmth to a non-insulated mattress in cold environments. It is has significantly less loft than a sleeping bag and didn't improve comfort of my mattress.

5 5

Worth the extra weight.

If you're taking your girl with you that is not that hairy SOB that refuses to wash his junk in the backcountry. It weighs around a 16oz and packs down small, just make sure you have two matching pads for the perfect setup (it works with two different pads as well but ideally you want them to be the same thickness.)

Unanswered Question

What is the pack size on the extra...

What is the pack size on the extra large?

what the r rating on this item and stuff...

what the r rating on this item and stuff pack size?

Best Answer Responded on

No rating! it is a cover only!!!

5 5

Double down with someone sweet

Perfect if your sharing a tent with someone you want to get close to, or really want to spread out like a starfish. takes up a bit of room in your pack, but squishes down pretty small. If you have the dough to drop, I recommend this product. Your friends will be jealous! And that extra spot next to you will be a coveted space for some lucky other who needs a cozy place to rest.